Pjarnu Weather Records (EN000026231)

Record envelope, standing records and threshold days for Pjarnu (EN000026231), Estonia, with 69 years of record.

Key Facts for Pjarnu

Pjarnu (EN000026231) is a weather station in Estonia at 58.37 latitude and 24.50 longitude, 8 m (26 ft) above sea level.
The station reports from 1936 to 2004, 69 years of record.
1,464 records set at Pjarnu still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Pjarnu set a daily record high maximum temperature of 7.6 C (45.7 F) on 12 December 2004.

About the Station

Location: Estonia, 58.37 latitude, 24.50 longitude.
Elevation: 8 m (26 ft).
Period of record: 1936 to 2004, 69 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Pjarnu. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Pjarnu, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	7.3 C (45.1 F)	-33.0 C (-27.4 F)	n/a	n/a
Feb	8.3 C (46.9 F)	-34.3 C (-29.7 F)	n/a	n/a
Mar	13.8 C (56.8 F)	-28.0 C (-18.4 F)	n/a	n/a
Apr	26.2 C (79.2 F)	-18.0 C (-0.4 F)	n/a	n/a
May	30.5 C (86.9 F)	-3.5 C (25.7 F)	n/a	n/a
Jun	32.6 C (90.7 F)	0.6 C (33.1 F)	n/a	n/a
Jul	33.2 C (91.8 F)	0.8 C (33.4 F)	n/a	n/a
Aug	32.6 C (90.7 F)	2.6 C (36.7 F)	n/a	n/a
Sep	28.8 C (83.8 F)	-3.5 C (25.7 F)	n/a	n/a
Oct	22.4 C (72.3 F)	-10.3 C (13.5 F)	n/a	n/a
Nov	12.6 C (54.7 F)	-18.0 C (-0.4 F)	n/a	n/a
Dec	10.8 C (51.4 F)	-34.5 C (-30.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Pjarnu still stand. 1942 holds the most, with 48.

Standing records at Pjarnu by the year they were set
Year set	Standing records
1936	22
1937	22
1938	31
1939	35
1940	31
1941	31
1942	48
1943	18
1944	12
1945	4
1946	7
1947	15
1948	3
1949	20
1950	11
1951	22
1952	22
1953	7
1954	12
1955	37
1956	33
1957	18
1958	14
1959	28
1960	12
1961	22
1962	10
1963	24
1964	4
1965	26
1966	25
1967	28
1968	27
1969	9
1970	8
1971	19
1972	25
1973	37
1974	11
1975	36
1976	21
1977	32
1978	35
1979	31
1980	16
1981	16
1982	15
1983	19
1984	21
1985	15
1986	15
1987	32
1988	23
1989	30
1990	20
1991	24
1992	14
1993	22
1994	5
1995	22
1996	18
1997	19
1998	25
1999	19
2000	28
2001	16
2002	35
2003	27
2004	23

All-Time Record Progression

4 new records

4 all-time records were set at Pjarnu between 31 December 1978 and 30 July 2003. Each dot is a new record.

When Pjarnu set new all-time records
Date	Kind	Detail
1978-12-31	Record low minimum temperature	Record low minimum temperature -34.5 C (-30.1 F)
1987-01-11	Record low maximum temperature	Record low maximum temperature -26.8 C (-16.2 F)
2003-07-29	Record high minimum temperature	Record high minimum temperature 21.3 C (70.3 F)
2003-07-30	Record high maximum temperature	Record high maximum temperature 33.2 C (91.8 F)

Wettest Day of Each Month

Sep: 95.4 mm (3.8 in)

The wettest day on record for each calendar month at Pjarnu. The most was 95.4 mm (3.8 in) on 23 September 1950.

Record daily precipitation for each month at Pjarnu
Month	Record daily precipitation (mm)	Date
Jan	40.0 mm (1.6 in)	24 January 1941
Feb	28.0 mm (1.1 in)	20 February 1941
Mar	77.0 mm (3.0 in)	3 March 1941
Apr	35.0 mm (1.4 in)	5 April 1941
May	24.9 mm (1.0 in)	29 May 1975
Jun	48.0 mm (1.9 in)	8 June 2004
Jul	60.6 mm (2.4 in)	30 July 1960
Aug	43.2 mm (1.7 in)	28 August 2001
Sep	95.4 mm (3.8 in)	23 September 1950
Oct	43.1 mm (1.7 in)	7 October 1956
Nov	48.0 mm (1.9 in)	8 November 1941
Dec	21.8 mm (0.9 in)	20 December 1981

Period of Record Coverage

1936 to 2004

69 years of record at Pjarnu, 1936 to 2004. 16 years have data for under 90 percent of days and are left out of rankings: 1941, 1944, 1945, 1992, 1993, 1994, 1995, 1996 and others.

Days with data per year at Pjarnu
Year	Days with data	Share of year	Complete
1936	366	100%	Yes
1937	365	100%	Yes
1938	364	100%	Yes
1939	365	100%	Yes
1940	366	100%	Yes
1941	273	75%	No
1942	334	92%	Yes
1943	365	100%	Yes
1944	244	67%	No
1945	153	42%	No
1946	365	100%	Yes
1947	365	100%	Yes
1948	366	100%	Yes
1949	365	100%	Yes
1950	365	100%	Yes
1951	365	100%	Yes
1952	366	100%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	364	100%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	364	100%	Yes
1983	365	100%	Yes
1984	366	100%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	364	100%	Yes
1988	366	100%	Yes
1989	330	90%	Yes
1990	351	96%	Yes
1991	365	100%	Yes
1992	223	61%	No
1993	186	51%	No
1994	272	75%	No
1995	284	78%	No
1996	294	80%	No
1997	304	83%	No
1998	292	80%	No
1999	303	83%	No
2000	317	87%	No
2001	298	82%	No
2002	313	86%	No
2003	307	84%	No
2004	317	87%	No

Latest Records

Latest records at Pjarnu
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 December 2004	Pjarnu, EE	daily high max	7.6 C (45.7 F)	0.1 C (0.2 F)	4 years	7 of 100 (Routine)
11 December 2004	Pjarnu, EE	daily high max	7.7 C (45.9 F)	1.2 C (2.2 F)	55 years	24 of 100 (Routine)
8 December 2004	Pjarnu, EE	daily high max	7.8 C (46.0 F)	1.4 C (2.5 F)	66 years	28 of 100 (Routine)
7 December 2004	Pjarnu, EE	monthly high max	10.8 C (51.4 F)	1.7 C (3.1 F)	0 years	19 of 100 (Routine)
6 December 2004	Pjarnu, EE	daily high max	8.1 C (46.6 F)	0.8 C (1.4 F)	18 years	12 of 100 (Routine)
5 December 2004	Pjarnu, EE	monthly high max	9.1 C (48.4 F)	0.9 C (1.6 F)	57 years	35 of 100 (Notable)
23 October 2004	Pjarnu, EE	daily rain	22.1 mm (0.9 in)	0.8 mm (0.03 in)	23 years	13 of 100 (Routine)
10 October 2004	Pjarnu, EE	daily low max	4.2 C (39.6 F)	0.7 C (1.3 F)	65 years	27 of 100 (Routine)
9 September 2004	Pjarnu, EE	daily low min	3.7 C (38.7 F)	0.1 C (0.2 F)	34 years	16 of 100 (Routine)
9 August 2004	Pjarnu, EE	daily high max (Tie)	27.6 C (81.7 F)	tie	29 years	3 of 100 (Routine)
5 August 2004	Pjarnu, EE	daily high max	29.3 C (84.7 F)	0.2 C (0.4 F)	21 years	12 of 100 (Routine)
4 August 2004	Pjarnu, EE	daily high max	29.5 C (85.1 F)	1.2 C (2.2 F)	21 years	15 of 100 (Routine)
23 July 2004	Pjarnu, EE	daily high min (Tie)	18.6 C (65.5 F)	tie	51 years	5 of 100 (Routine)
8 June 2004	Pjarnu, EE	monthly rain	48.0 mm (1.9 in)	5.2 mm (0.20 in)	27 years	32 of 100 (Routine)
24 May 2004	Pjarnu, EE	daily rain	8.1 mm (0.32 in)	0.1 mm (0.00 in)	45 years	19 of 100 (Routine)
8 May 2004	Pjarnu, EE	daily high min	12.9 C (55.2 F)	0.1 C (0.2 F)	56 years	22 of 100 (Routine)
8 May 2004	Pjarnu, EE	daily high max	27.5 C (81.5 F)	2.8 C (5.0 F)	29 years	19 of 100 (Routine)
7 May 2004	Pjarnu, EE	daily high min	13.9 C (57.0 F)	0.3 C (0.5 F)	50 years	21 of 100 (Routine)
6 May 2004	Pjarnu, EE	daily high min	16.1 C (61.0 F)	4.4 C (7.9 F)	55 years	33 of 100 (Routine)
6 May 2004	Pjarnu, EE	daily high max	28.0 C (82.4 F)	3.0 C (5.4 F)	56 years	28 of 100 (Routine)

Climate Trend

50 complete years, 1936 to 1991

One stripe for each of 50 complete years at Pjarnu, 1936 to 1991. Blue stripes are years cooler than the station's own mean of 5.6 C (42.1 F); red stripes are warmer. The coolest year was 1940, at 4.0 C (39.1 F), and the warmest was 1975, at 7.4 C (45.4 F). The strongest colour marks a difference of 1.9 C (3.4 F).

Annual mean temperature at Pjarnu as warming stripes, 1936 to 1991
Year	Annual mean temperature	Difference from the station mean
1936	6.8 C	+1.19 C
1937	6.6 C	+0.93 C
1938	7.2 C	+1.54 C
1939	6.3 C	+0.65 C
1940	4.0 C	-1.68 C
1943	6.7 C	+1.07 C
1946	5.4 C	-0.24 C
1947	4.6 C	-1.05 C
1948	6.2 C	+0.53 C
1949	7.2 C	+1.52 C
1950	5.5 C	-0.12 C
1951	5.4 C	-0.26 C
1952	4.7 C	-0.90 C
1953	6.0 C	+0.41 C
1954	5.6 C	-0.01 C
1955	4.6 C	-1.02 C
1956	4.0 C	-1.61 C
1957	6.1 C	+0.42 C
1958	4.9 C	-0.70 C
1959	6.4 C	+0.73 C
1960	5.4 C	-0.24 C
1961	7.1 C	+1.42 C
1962	5.2 C	-0.47 C
1963	4.5 C	-1.12 C
1964	5.7 C	+0.05 C
1965	5.0 C	-0.63 C
1966	4.6 C	-1.02 C
1967	5.9 C	+0.25 C
1968	5.2 C	-0.48 C
1969	4.4 C	-1.27 C
1970	4.7 C	-0.95 C
1971	6.0 C	+0.34 C
1972	6.5 C	+0.82 C
1973	6.1 C	+0.45 C
1974	6.9 C	+1.24 C
1975	7.4 C	+1.81 C
1976	4.3 C	-1.35 C
1977	5.2 C	-0.46 C
1978	4.5 C	-1.17 C
1979	5.2 C	-0.45 C
1980	5.1 C	-0.55 C
1981	5.8 C	+0.20 C
1982	6.1 C	+0.45 C
1983	6.9 C	+1.27 C
1984	6.5 C	+0.83 C
1985	4.4 C	-1.27 C
1986	5.7 C	+0.06 C
1987	4.2 C	-1.46 C
1988	6.4 C	+0.76 C
1991	7.1 C	+1.51 C

The fitted trend in annual mean temperature here over 1936 to 1991 is -0.04 C (-0.22 to 0.14) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.4 to 0.3) per decade. The slope is a straight line fitted to 50 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Pjarnu
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.04 C (-0.22 to 0.14) per decade	-0.1 F (-0.4 to 0.3) per decade	1936 to 1991	50	Not clearly different from zero
Mean daily maximum	-0.1 C (-0.2 to 0.1) per decade	-0.1 F (-0.4 to 0.2) per decade	1936 to 1991	50	Not clearly different from zero
Mean daily minimum	-0.02 C (-0.22 to 0.19) per decade	-0.03 F (-0.40 to 0.33) per decade	1936 to 1991	50	Not clearly different from zero

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1936 to 2004

Yearly extremes at Pjarnu: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	33.2 C (91.8 F)	2003	28.7 C (83.7 F)	69
Coldest night (TNn)	-34.5 C (-30.1 F)	1978	-22.9 C (-9.2 F)	69
Wettest day (Rx1day)	95.4 mm (3.8 in)	1950	30.5 mm (1.2 in)	69
Wettest five days (Rx5day)	130.9 mm (5.2 in)	1950	48.7 mm (1.9 in)	69
Longest dry spell (CDD)	43 days	1972	20 days	69

Hottest day (TXx)

The hottest day of the year at Pjarnu, 1936 to 2004. The record is 33.2 C (91.8 F) in 2003, marked on the chart; the median year is 28.7 C (83.7 F).

Hottest day (TXx) at Pjarnu by year
Year	Hottest day (TXx)
1936	32.6 C (90.7 F)
1937	28.3 C (82.9 F)
1938	30.9 C (87.6 F)
1939	31.7 C (89.1 F)
1940	30.4 C (86.7 F)
1941	25.6 C (78.1 F)
1942	26.5 C (79.7 F)
1943	28.2 C (82.8 F)
1944	29.7 C (85.5 F)
1945	26.9 C (80.4 F)
1946	27.3 C (81.1 F)
1947	28.7 C (83.7 F)
1948	27.9 C (82.2 F)
1949	26.2 C (79.2 F)
1950	26.2 C (79.2 F)
1951	27.5 C (81.5 F)
1952	26.2 C (79.2 F)
1953	29.0 C (84.2 F)
1954	29.8 C (85.6 F)
1955	27.5 C (81.5 F)
1956	31.3 C (88.3 F)
1957	28.1 C (82.6 F)
1958	27.7 C (81.9 F)
1959	29.9 C (85.8 F)
1960	29.9 C (85.8 F)
1961	27.3 C (81.1 F)
1962	24.4 C (75.9 F)
1963	30.7 C (87.3 F)
1964	28.5 C (83.3 F)
1965	28.0 C (82.4 F)
1966	29.3 C (84.7 F)
1967	30.5 C (86.9 F)
1968	28.6 C (83.5 F)
1969	28.8 C (83.8 F)
1970	28.7 C (83.7 F)
1971	28.0 C (82.4 F)
1972	31.0 C (87.8 F)
1973	30.8 C (87.4 F)
1974	26.8 C (80.2 F)
1975	30.2 C (86.4 F)
1976	28.4 C (83.1 F)
1977	30.5 C (86.9 F)
1978	27.0 C (80.6 F)
1979	28.0 C (82.4 F)
1980	28.7 C (83.7 F)
1981	27.4 C (81.3 F)
1982	29.1 C (84.4 F)
1983	30.5 C (86.9 F)
1984	27.6 C (81.7 F)
1985	28.6 C (83.5 F)
1986	29.1 C (84.4 F)
1987	26.6 C (79.9 F)
1988	32.6 C (90.7 F)
1989	27.9 C (82.2 F)
1990	26.5 C (79.7 F)
1991	29.0 C (84.2 F)
1992	31.0 C (87.8 F)
1993	28.5 C (83.3 F)
1994	30.0 C (86.0 F)
1995	30.5 C (86.9 F)
1996	29.5 C (85.1 F)
1997	31.6 C (88.9 F)
1998	30.3 C (86.5 F)
1999	30.4 C (86.7 F)
2000	27.5 C (81.5 F)
2001	30.2 C (86.4 F)
2002	31.8 C (89.2 F)
2003	33.2 C (91.8 F)
2004	29.5 C (85.1 F)

Coldest night (TNn)

The coldest night of the year at Pjarnu, 1936 to 2004. The record is -34.5 C (-30.1 F) in 1978, marked on the chart; the median year is -22.9 C (-9.2 F).

Coldest night (TNn) at Pjarnu by year
Year	Coldest night (TNn)
1936	-21.2 C (-6.2 F)
1937	-21.6 C (-6.9 F)
1938	-18.9 C (-2.0 F)
1939	-23.7 C (-10.7 F)
1940	-34.3 C (-29.7 F)
1941	-28.8 C (-19.8 F)
1942	-31.7 C (-25.1 F)
1943	-27.2 C (-17.0 F)
1944	-12.7 C (9.1 F)
1945	-16.2 C (2.8 F)
1946	-20.8 C (-5.4 F)
1947	-28.1 C (-18.6 F)
1948	-19.4 C (-2.9 F)
1949	-14.4 C (6.1 F)
1950	-28.0 C (-18.4 F)
1951	-22.9 C (-9.2 F)
1952	-25.0 C (-13.0 F)
1953	-25.2 C (-13.4 F)
1954	-24.0 C (-11.2 F)
1955	-24.0 C (-11.2 F)
1956	-32.9 C (-27.2 F)
1957	-24.1 C (-11.4 F)
1958	-20.7 C (-5.3 F)
1959	-22.1 C (-7.8 F)
1960	-24.7 C (-12.5 F)
1961	-17.3 C (0.9 F)
1962	-21.6 C (-6.9 F)
1963	-28.8 C (-19.8 F)
1964	-24.2 C (-11.6 F)
1965	-23.3 C (-9.9 F)
1966	-33.4 C (-28.1 F)
1967	-28.2 C (-18.8 F)
1968	-31.5 C (-24.7 F)
1969	-25.1 C (-13.2 F)
1970	-29.5 C (-21.1 F)
1971	-23.9 C (-11.0 F)
1972	-22.8 C (-9.0 F)
1973	-20.7 C (-5.3 F)
1974	-12.9 C (8.8 F)
1975	-13.6 C (7.5 F)
1976	-21.7 C (-7.1 F)
1977	-23.4 C (-10.1 F)
1978	-34.5 C (-30.1 F)
1979	-30.6 C (-23.1 F)
1980	-26.0 C (-14.8 F)
1981	-19.9 C (-3.8 F)
1982	-25.3 C (-13.5 F)
1983	-17.1 C (1.2 F)
1984	-22.7 C (-8.9 F)
1985	-28.5 C (-19.3 F)
1986	-23.7 C (-10.7 F)
1987	-32.7 C (-26.9 F)
1988	-18.0 C (-0.4 F)
1989	-21.7 C (-7.1 F)
1990	-15.7 C (3.7 F)
1991	-16.7 C (1.9 F)
1992	-12.5 C (9.5 F)
1993	-18.0 C (-0.4 F)
1994	-23.5 C (-10.3 F)
1995	-18.6 C (-1.5 F)
1996	-23.9 C (-11.0 F)
1997	-19.7 C (-3.5 F)
1998	-18.0 C (-0.4 F)
1999	-18.6 C (-1.5 F)
2000	-17.6 C (0.3 F)
2001	-22.2 C (-8.0 F)
2002	-22.0 C (-7.6 F)
2003	-26.3 C (-15.3 F)
2004	-16.7 C (1.9 F)

Wettest day (Rx1day)

The wettest day of the year at Pjarnu, 1936 to 2004. The record is 95.4 mm (3.8 in) in 1950, marked on the chart; the median year is 30.5 mm (1.2 in).

Wettest day (Rx1day) at Pjarnu by year
Year	Wettest day (Rx1day)
1936	19.1 mm (0.8 in)
1937	29.5 mm (1.2 in)
1938	21.4 mm (0.8 in)
1939	20.4 mm (0.8 in)
1940	39.8 mm (1.6 in)
1941	77.0 mm (3.0 in)
1942	36.7 mm (1.4 in)
1943	38.5 mm (1.5 in)
1944	36.3 mm (1.4 in)
1945	20.0 mm (0.8 in)
1946	27.3 mm (1.1 in)
1947	26.3 mm (1.0 in)
1948	40.5 mm (1.6 in)
1949	25.9 mm (1.0 in)
1950	95.4 mm (3.8 in)
1951	51.4 mm (2.0 in)
1952	36.7 mm (1.4 in)
1953	23.5 mm (0.9 in)
1954	50.1 mm (2.0 in)
1955	24.4 mm (1.0 in)
1956	52.9 mm (2.1 in)
1957	23.3 mm (0.9 in)
1958	35.2 mm (1.4 in)
1959	39.8 mm (1.6 in)
1960	60.6 mm (2.4 in)
1961	32.5 mm (1.3 in)
1962	35.2 mm (1.4 in)
1963	20.8 mm (0.8 in)
1964	19.8 mm (0.8 in)
1965	24.7 mm (1.0 in)
1966	30.5 mm (1.2 in)
1967	24.1 mm (0.9 in)
1968	28.7 mm (1.1 in)
1969	20.0 mm (0.8 in)
1970	29.8 mm (1.2 in)
1971	17.4 mm (0.7 in)
1972	39.1 mm (1.5 in)
1973	38.0 mm (1.5 in)
1974	31.5 mm (1.2 in)
1975	25.4 mm (1.0 in)
1976	42.8 mm (1.7 in)
1977	37.4 mm (1.5 in)
1978	42.6 mm (1.7 in)
1979	21.9 mm (0.9 in)
1980	33.2 mm (1.3 in)
1981	44.1 mm (1.7 in)
1982	29.5 mm (1.2 in)
1983	27.9 mm (1.1 in)
1984	23.7 mm (0.9 in)
1985	38.5 mm (1.5 in)
1986	18.7 mm (0.7 in)
1987	31.2 mm (1.2 in)
1988	26.7 mm (1.1 in)
1989	21.1 mm (0.8 in)
1990	33.0 mm (1.3 in)
1991	21.5 mm (0.8 in)
1992	43.2 mm (1.7 in)
1993	23.9 mm (0.9 in)
1994	31.0 mm (1.2 in)
1995	38.1 mm (1.5 in)
1996	29.0 mm (1.1 in)
1997	29.0 mm (1.1 in)
1998	33.0 mm (1.3 in)
1999	24.1 mm (0.9 in)
2000	29.2 mm (1.1 in)
2001	43.2 mm (1.7 in)
2002	38.1 mm (1.5 in)
2003	18.0 mm (0.7 in)
2004	48.0 mm (1.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Pjarnu, 1936 to 2004. The record is 130.9 mm (5.2 in) in 1950, marked on the chart; the median year is 48.7 mm (1.9 in).

Wettest five days (Rx5day) at Pjarnu by year
Year	Wettest five days (Rx5day)
1936	58.1 mm (2.3 in)
1937	46.8 mm (1.8 in)
1938	35.7 mm (1.4 in)
1939	28.4 mm (1.1 in)
1940	59.0 mm (2.3 in)
1941	104.0 mm (4.1 in)
1942	65.6 mm (2.6 in)
1943	92.3 mm (3.6 in)
1944	46.7 mm (1.8 in)
1945	38.6 mm (1.5 in)
1946	52.9 mm (2.1 in)
1947	43.7 mm (1.7 in)
1948	55.2 mm (2.2 in)
1949	53.0 mm (2.1 in)
1950	130.9 mm (5.2 in)
1951	95.3 mm (3.8 in)
1952	81.9 mm (3.2 in)
1953	37.9 mm (1.5 in)
1954	70.5 mm (2.8 in)
1955	39.1 mm (1.5 in)
1956	72.0 mm (2.8 in)
1957	45.8 mm (1.8 in)
1958	41.3 mm (1.6 in)
1959	59.5 mm (2.3 in)
1960	81.9 mm (3.2 in)
1961	46.6 mm (1.8 in)
1962	51.1 mm (2.0 in)
1963	56.1 mm (2.2 in)
1964	37.1 mm (1.5 in)
1965	62.0 mm (2.4 in)
1966	38.5 mm (1.5 in)
1967	42.4 mm (1.7 in)
1968	41.9 mm (1.6 in)
1969	32.2 mm (1.3 in)
1970	49.8 mm (2.0 in)
1971	41.7 mm (1.6 in)
1972	75.7 mm (3.0 in)
1973	53.7 mm (2.1 in)
1974	57.5 mm (2.3 in)
1975	41.8 mm (1.6 in)
1976	59.3 mm (2.3 in)
1977	44.5 mm (1.8 in)
1978	78.1 mm (3.1 in)
1979	38.8 mm (1.5 in)
1980	57.3 mm (2.3 in)
1981	60.6 mm (2.4 in)
1982	48.7 mm (1.9 in)
1983	38.5 mm (1.5 in)
1984	63.1 mm (2.5 in)
1985	69.3 mm (2.7 in)
1986	38.4 mm (1.5 in)
1987	56.0 mm (2.2 in)
1988	51.1 mm (2.0 in)
1989	28.3 mm (1.1 in)
1990	72.8 mm (2.9 in)
1991	53.7 mm (2.1 in)
1992	37.0 mm (1.5 in)
1993	46.0 mm (1.8 in)
1994	12.1 mm (0.5 in)
1995	27.8 mm (1.1 in)
1996	26.5 mm (1.0 in)
1997	30.5 mm (1.2 in)
1998	38.0 mm (1.5 in)
1999	38.0 mm (1.5 in)
2000	37.6 mm (1.5 in)
2001	56.1 mm (2.2 in)
2002	29.0 mm (1.1 in)
2003	37.5 mm (1.5 in)
2004	58.4 mm (2.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Pjarnu, 1936 to 2004. The record is 43 days in 1972, marked on the chart; the median year is 20 days.

Longest dry spell (CDD) at Pjarnu by year
Year	Longest dry spell (CDD)
1936	16 days
1937	19 days
1938	27 days
1939	42 days
1940	20 days
1941	30 days
1942	23 days
1943	21 days
1944	21 days
1945	10 days
1946	20 days
1947	19 days
1948	34 days
1949	29 days
1950	22 days
1951	19 days
1952	18 days
1953	30 days
1954	27 days
1955	20 days
1956	29 days
1957	17 days
1958	22 days
1959	19 days
1960	24 days
1961	26 days
1962	21 days
1963	18 days
1964	28 days
1965	26 days
1966	23 days
1967	15 days
1968	26 days
1969	23 days
1970	20 days
1971	39 days
1972	43 days
1973	11 days
1974	31 days
1975	16 days
1976	23 days
1977	17 days
1978	24 days
1979	22 days
1980	20 days
1981	17 days
1982	23 days
1983	23 days
1984	22 days
1985	15 days
1986	17 days
1987	26 days
1988	22 days
1989	20 days
1990	13 days
1991	16 days
1992	2 days
1993	3 days
1994	2 days
1995	1 day
1996	3 days
1997	2 days
1998	2 days
1999	12 days
2000	1 day
2001	2 days
2002	2 days
2003	2 days
2004	3 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

50 years with a frost

Across 50 years with a frost, the median last spring frost at Pjarnu falls on 30 April and the median first autumn frost on 14 October, which leaves a median of 165 days between them.

Fitted over all years, the growing season changes by +0.6 days per decade at this station.

Frost dates and growing season at Pjarnu
Measure	Median, all years	Earliest period	Recent period (1960 to 1991)	Recent against earliest	Fitted trend
Last spring frost	30 April	n/a	1 May	n/a	+0.5 days per decade
First autumn frost	14 October	n/a	16 October	n/a	+1.1 days per decade
Growing days	165 days	n/a	167 days	n/a	+0.6 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

51 years, 1936 to 1991

A day with at least 29.8 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 80.6 mm (3.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Pjarnu: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	29.8 mm (1.2 in)
5 years	40.4 mm (1.6 in)
10 years	48.5 mm (1.9 in)
25 years	60.1 mm (2.4 in)
50 years	69.9 mm (2.8 in)
100 years	80.6 mm (3.2 in)	Longer than the 51 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 51 years of values from 1936 to 1991.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 95.4 mm (3.8 in) in 1950; 60.6 mm (2.4 in) in 1960; 52.9 mm (2.1 in) in 1956.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Pjarnu, at 1958. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 1958 ran 0.1 C (0.1 F) higher than in the years before (possible change).

Suspected changes in the annual mean temperature at Pjarnu, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
1958	+0.1	+0.1	possible	5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Download the Data

Data for Pjarnu standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Pjarnu threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).