Polis Weather Records (CYE00100077)

Record envelope, standing records and threshold days for Polis (CYE00100077), Cyprus, with 98 years of record.

Key Facts for Polis

Polis (CYE00100077) is a weather station in Cyprus at 35.03 latitude and 32.43 longitude, 20 m (66 ft) above sea level.
The station reports from 1916 to 2013, 98 years of record.
1,464 records set at Polis still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Polis set a daily record precipitation of 19.0 mm (0.7 in) on 16 October 2013.

About the Station

Location: Cyprus, 35.03 latitude, 32.43 longitude.
Elevation: 20 m (66 ft).
Period of record: 1916 to 2013, 98 years.
Eligible elements: 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 Polis. 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 Polis, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	24.0 C (75.2 F)	0.0 C (32.0 F)	n/a	n/a
Feb	27.7 C (81.9 F)	0.0 C (32.0 F)	n/a	n/a
Mar	29.2 C (84.6 F)	0.2 C (32.4 F)	n/a	n/a
Apr	32.0 C (89.6 F)	4.0 C (39.2 F)	n/a	n/a
May	35.1 C (95.2 F)	5.5 C (41.9 F)	n/a	n/a
Jun	39.5 C (103.1 F)	11.4 C (52.5 F)	n/a	n/a
Jul	41.3 C (106.3 F)	15.0 C (59.0 F)	n/a	n/a
Aug	38.6 C (101.5 F)	13.7 C (56.7 F)	n/a	n/a
Sep	36.5 C (97.7 F)	13.4 C (56.1 F)	n/a	n/a
Oct	34.4 C (93.9 F)	8.2 C (46.8 F)	n/a	n/a
Nov	31.4 C (88.5 F)	4.0 C (39.2 F)	n/a	n/a
Dec	27.1 C (80.8 F)	0.0 C (32.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Polis still stand. 1982 holds the most, with 89.

Standing records at Polis by the year they were set
Year set	Standing records
1971	67
1972	39
1973	55
1974	40
1975	35
1976	80
1977	51
1978	60
1979	55
1980	58
1981	66
1982	89
1983	65
1984	46
1985	52
2002	48
2003	68
2004	57
2005	68
2006	43
2007	60
2008	53
2009	41
2010	8
2011	45
2012	47
2013	68

Wettest Day of Each Month

Dec: 114.0 mm (4.5 in)

The wettest day on record for each calendar month at Polis. The most was 114.0 mm (4.5 in) on 3 December 1936.

Record daily precipitation for each month at Polis
Month	Record daily precipitation (mm)	Date
Jan	50.6 mm (2.0 in)	9 January 1975
Feb	61.0 mm (2.4 in)	25 February 1922
Mar	56.6 mm (2.2 in)	9 March 1987
Apr	63.5 mm (2.5 in)	15 April 1944
May	36.8 mm (1.4 in)	13 May 1934
Jun	34.3 mm (1.4 in)	2 June 1947
Jul	22.1 mm (0.9 in)	9 July 1964
Aug	15.2 mm (0.6 in)	14 August 1968
Sep	36.3 mm (1.4 in)	11 September 1959
Oct	76.2 mm (3.0 in)	15 October 1944
Nov	82.5 mm (3.2 in)	26 November 1968
Dec	114.0 mm (4.5 in)	3 December 1936

Period of Record Coverage

1971 to 2013

27 years of record at Polis, 1971 to 2013. 4 years have data for under 90 percent of days and are left out of rankings: 1971, 1972, 1980, 2010.

Days with data per year at Polis
Year	Days with data	Share of year	Complete
1971	317	87%	No
1972	327	89%	No
1973	333	91%	Yes
1974	362	99%	Yes
1975	364	100%	Yes
1976	363	99%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	364	100%	Yes
1980	262	72%	No
1981	365	100%	Yes
1982	363	99%	Yes
1983	362	99%	Yes
1984	364	99%	Yes
1985	365	100%	Yes
2002	365	100%	Yes
2003	365	100%	Yes
2004	366	100%	Yes
2005	365	100%	Yes
2006	365	100%	Yes
2007	365	100%	Yes
2008	366	100%	Yes
2009	334	92%	Yes
2010	31	8%	No
2011	365	100%	Yes
2012	366	100%	Yes
2013	365	100%	Yes

Latest Records

Latest records at Polis
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
16 October 2013	Polis, CY	daily rain	19.0 mm (0.7 in)	1.8 mm (0.07 in)	19 years	15 of 100 (Routine)
1 October 2013	Polis, CY	daily rain	19.9 mm (0.8 in)	4.7 mm (0.19 in)	71 years	20 of 100 (Routine)
10 May 2013	Polis, CY	daily rain	14.7 mm (0.6 in)	3.5 mm (0.14 in)	6 years	15 of 100 (Routine)
9 May 2013	Polis, CY	daily rain	20.8 mm (0.8 in)	4.3 mm (0.17 in)	63 years	20 of 100 (Routine)
14 April 2013	Polis, CY	daily rain	28.0 mm (1.1 in)	14.1 mm (0.6 in)	4 years	28 of 100 (Routine)
17 December 2012	Polis, CY	daily rain	53.2 mm (2.1 in)	27.8 mm (1.1 in)	78 years	57 of 100 (Notable)
7 November 2012	Polis, CY	daily rain	31.5 mm (1.2 in)	13.7 mm (0.5 in)	65 years	41 of 100 (Notable)
9 October 2012	Polis, CY	daily rain	47.5 mm (1.9 in)	1.9 mm (0.07 in)	39 years	21 of 100 (Routine)
6 October 2012	Polis, CY	daily rain	20.6 mm (0.8 in)	9.2 mm (0.36 in)	50 years	20 of 100 (Routine)
20 June 2012	Polis, CY	daily rain	3.0 mm (0.12 in)	3.0 mm (0.12 in)	95 years	20 of 100 (Routine)
8 April 2012	Polis, CY	daily rain	11.0 mm (0.4 in)	0.4 mm (0.02 in)	21 years	15 of 100 (Routine)
27 February 2012	Polis, CY	daily rain	28.4 mm (1.1 in)	3.0 mm (0.12 in)	84 years	37 of 100 (Notable)
6 January 2012	Polis, CY	daily rain	47.9 mm (1.9 in)	18.7 mm (0.7 in)	84 years	58 of 100 (Notable)
21 September 2011	Polis, CY	daily rain	21.2 mm (0.8 in)	11.3 mm (0.4 in)	44 years	20 of 100 (Routine)
7 March 2011	Polis, CY	daily rain	28.0 mm (1.1 in)	3.8 mm (0.15 in)	4 years	15 of 100 (Routine)
12 December 2010	Polis, CY	daily rain	29.7 mm (1.2 in)	3.8 mm (0.15 in)	28 years	20 of 100 (Routine)
4 December 2010	Polis, CY	daily rain (Tie)	35.4 mm (1.4 in)	tie	13 years	3 of 100 (Routine)
31 August 2010	Polis, CY	daily rain	3.8 mm (0.15 in)	3.8 mm (0.15 in)	92 years	20 of 100 (Routine)
6 April 2010	Polis, CY	daily rain	8.1 mm (0.32 in)	0.8 mm (0.03 in)	0 years	10 of 100 (Routine)
7 February 2010	Polis, CY	daily rain	38.7 mm (1.5 in)	9.5 mm (0.37 in)	54 years	37 of 100 (Notable)

Climate Trend

21 complete years, 1974 to 2013

One stripe for each of 21 complete years at Polis, 1974 to 2013. Blue stripes are years cooler than the station's own mean of 19.1 C (66.3 F); red stripes are warmer. The coolest year was 1983, at 18.2 C (64.7 F), and the warmest was 2012, at 19.7 C (67.5 F). The strongest colour marks a difference of 0.9 C (1.6 F).

Annual mean temperature at Polis as warming stripes, 1974 to 2013
Year	Annual mean temperature	Difference from the station mean
1974	18.8 C	-0.29 C
1975	18.7 C	-0.37 C
1976	18.4 C	-0.72 C
1977	18.7 C	-0.33 C
1978	18.9 C	-0.18 C
1979	19.3 C	+0.22 C
1981	18.9 C	-0.17 C
1982	18.3 C	-0.76 C
1983	18.2 C	-0.88 C
1984	18.5 C	-0.53 C
1985	18.8 C	-0.32 C
2002	19.7 C	+0.61 C
2003	19.5 C	+0.46 C
2004	19.2 C	+0.09 C
2005	19.2 C	+0.14 C
2006	19.3 C	+0.22 C
2007	19.7 C	+0.58 C
2008	19.7 C	+0.64 C
2011	19.4 C	+0.33 C
2012	19.7 C	+0.65 C
2013	19.7 C	+0.59 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1916 to 2013

Yearly extremes at Polis: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	41.3 C (106.3 F)	1973	37.4 C (99.3 F)	27
Coldest night (TNn)	0.0 C (32.0 F)	1983	1.5 C (34.7 F)	27
Wettest day (Rx1day)	114.0 mm (4.5 in)	1936	38.4 mm (1.5 in)	98
Wettest five days (Rx5day)	184.7 mm (7.3 in)	1936	73.6 mm (2.9 in)	97
Longest dry spell (CDD)	228 days	1990	141 days	97

Hottest day (TXx)

The hottest day of the year at Polis, 1916 to 2013. The record is 41.3 C (106.3 F) in 1973, marked on the chart; the median year is 37.4 C (99.3 F).

Hottest day (TXx) at Polis by year
Year	Hottest day (TXx)
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	38.5 C (101.3 F)
1972	36.5 C (97.7 F)
1973	41.3 C (106.3 F)
1974	37.1 C (98.8 F)
1975	36.2 C (97.2 F)
1976	37.3 C (99.1 F)
1977	41.3 C (106.3 F)
1978	38.3 C (100.9 F)
1979	38.1 C (100.6 F)
1980	37.9 C (100.2 F)
1981	37.1 C (98.8 F)
1982	38.7 C (101.7 F)
1983	36.9 C (98.4 F)
1984	36.8 C (98.2 F)
1985	37.4 C (99.3 F)
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	38.0 C (100.4 F)
2003	37.0 C (98.6 F)
2004	37.4 C (99.3 F)
2005	38.0 C (100.4 F)
2006	38.6 C (101.5 F)
2007	39.3 C (102.7 F)
2008	38.5 C (101.3 F)
2009	38.0 C (100.4 F)
2010	24.0 C (75.2 F)
2011	37.2 C (99.0 F)
2012	36.7 C (98.1 F)
2013	36.9 C (98.4 F)

Coldest night (TNn)

The coldest night of the year at Polis, 1916 to 2013. The record is 0.0 C (32.0 F) in 1983, marked on the chart; the median year is 1.5 C (34.7 F).

Coldest night (TNn) at Polis by year
Year	Coldest night (TNn)
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	0.7 C (33.3 F)
1972	0.5 C (32.9 F)
1973	1.3 C (34.3 F)
1974	1.7 C (35.1 F)
1975	1.0 C (33.8 F)
1976	0.2 C (32.4 F)
1977	1.2 C (34.2 F)
1978	4.1 C (39.4 F)
1979	2.1 C (35.8 F)
1980	1.7 C (35.1 F)
1981	4.6 C (40.3 F)
1982	1.2 C (34.2 F)
1983	0.0 C (32.0 F)
1984	2.6 C (36.7 F)
1985	0.6 C (33.1 F)
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	0.0 C (32.0 F)
2003	2.2 C (36.0 F)
2004	1.5 C (34.7 F)
2005	1.0 C (33.8 F)
2006	0.0 C (32.0 F)
2007	3.4 C (38.1 F)
2008	1.5 C (34.7 F)
2009	1.2 C (34.2 F)
2010	8.0 C (46.4 F)
2011	2.0 C (35.6 F)
2012	1.9 C (35.4 F)
2013	2.5 C (36.5 F)

Wettest day (Rx1day)

The wettest day of the year at Polis, 1916 to 2013. The record is 114.0 mm (4.5 in) in 1936, marked on the chart; the median year is 38.4 mm (1.5 in).

Wettest day (Rx1day) at Polis by year
Year	Wettest day (Rx1day)
1916	25.4 mm (1.0 in)
1917	31.5 mm (1.2 in)
1918	70.6 mm (2.8 in)
1919	39.4 mm (1.6 in)
1920	43.2 mm (1.7 in)
1921	45.7 mm (1.8 in)
1922	61.0 mm (2.4 in)
1923	67.3 mm (2.6 in)
1924	40.6 mm (1.6 in)
1925	25.4 mm (1.0 in)
1926	41.1 mm (1.6 in)
1927	29.2 mm (1.1 in)
1928	38.1 mm (1.5 in)
1929	33.0 mm (1.3 in)
1930	56.6 mm (2.2 in)
1931	25.4 mm (1.0 in)
1932	50.8 mm (2.0 in)
1933	20.3 mm (0.8 in)
1934	36.8 mm (1.4 in)
1935	38.1 mm (1.5 in)
1936	114.0 mm (4.5 in)
1937	17.8 mm (0.7 in)
1938	45.7 mm (1.8 in)
1939	45.7 mm (1.8 in)
1940	33.0 mm (1.3 in)
1941	50.8 mm (2.0 in)
1942	24.1 mm (0.9 in)
1943	19.1 mm (0.8 in)
1944	76.2 mm (3.0 in)
1945	25.4 mm (1.0 in)
1946	38.6 mm (1.5 in)
1947	34.3 mm (1.4 in)
1948	27.9 mm (1.1 in)
1949	80.8 mm (3.2 in)
1950	45.7 mm (1.8 in)
1951	30.5 mm (1.2 in)
1952	44.5 mm (1.8 in)
1953	33.0 mm (1.3 in)
1954	44.5 mm (1.8 in)
1955	39.6 mm (1.6 in)
1956	44.7 mm (1.8 in)
1957	64.8 mm (2.6 in)
1958	41.9 mm (1.6 in)
1959	36.3 mm (1.4 in)
1960	26.7 mm (1.1 in)
1961	52.6 mm (2.1 in)
1962	50.8 mm (2.0 in)
1963	36.8 mm (1.4 in)
1964	32.0 mm (1.3 in)
1965	35.6 mm (1.4 in)
1966	36.1 mm (1.4 in)
1967	49.8 mm (2.0 in)
1968	82.5 mm (3.2 in)
1969	35.0 mm (1.4 in)
1970	35.0 mm (1.4 in)
1971	29.8 mm (1.2 in)
1972	26.4 mm (1.0 in)
1973	45.6 mm (1.8 in)
1974	29.3 mm (1.2 in)
1975	50.6 mm (2.0 in)
1976	55.6 mm (2.2 in)
1977	50.0 mm (2.0 in)
1978	48.0 mm (1.9 in)
1979	45.7 mm (1.8 in)
1980	21.1 mm (0.8 in)
1981	37.7 mm (1.5 in)
1982	25.9 mm (1.0 in)
1983	71.3 mm (2.8 in)
1984	36.7 mm (1.4 in)
1985	48.0 mm (1.9 in)
1986	21.8 mm (0.9 in)
1987	56.6 mm (2.2 in)
1988	57.8 mm (2.3 in)
1989	33.9 mm (1.3 in)
1990	28.4 mm (1.1 in)
1991	45.0 mm (1.8 in)
1992	33.3 mm (1.3 in)
1993	22.2 mm (0.9 in)
1994	69.0 mm (2.7 in)
1995	19.8 mm (0.8 in)
1996	35.4 mm (1.4 in)
1997	30.5 mm (1.2 in)
1998	31.9 mm (1.3 in)
1999	40.3 mm (1.6 in)
2000	21.5 mm (0.8 in)
2001	8.1 mm (0.32 in)
2002	40.8 mm (1.6 in)
2003	33.0 mm (1.3 in)
2004	43.8 mm (1.7 in)
2005	25.7 mm (1.0 in)
2006	28.9 mm (1.1 in)
2007	41.0 mm (1.6 in)
2008	62.3 mm (2.5 in)
2009	56.4 mm (2.2 in)
2010	46.0 mm (1.8 in)
2011	45.5 mm (1.8 in)
2012	53.2 mm (2.1 in)
2013	28.0 mm (1.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Polis, 1916 to 2013. The record is 184.7 mm (7.3 in) in 1936, marked on the chart; the median year is 73.6 mm (2.9 in).

Wettest five days (Rx5day) at Polis by year
Year	Wettest five days (Rx5day)
1916	30.5 mm (1.2 in)
1917	59.7 mm (2.4 in)
1918	106.2 mm (4.2 in)
1919	83.5 mm (3.3 in)
1920	49.1 mm (1.9 in)
1921	114.7 mm (4.5 in)
1922	100.0 mm (3.9 in)
1923	74.7 mm (2.9 in)
1924	58.5 mm (2.3 in)
1925	86.5 mm (3.4 in)
1926	75.6 mm (3.0 in)
1927	45.2 mm (1.8 in)
1928	67.8 mm (2.7 in)
1929	82.7 mm (3.3 in)
1930	63.4 mm (2.5 in)
1931	63.4 mm (2.5 in)
1932	73.7 mm (2.9 in)
1933	38.2 mm (1.5 in)
1934	139.4 mm (5.5 in)
1935	73.6 mm (2.9 in)
1936	184.7 mm (7.3 in)
1937	36.6 mm (1.4 in)
1938	90.1 mm (3.5 in)
1939	76.2 mm (3.0 in)
1940	54.1 mm (2.1 in)
1941	74.9 mm (2.9 in)
1942	68.8 mm (2.7 in)
1943	47.0 mm (1.9 in)
1944	79.5 mm (3.1 in)
1945	35.2 mm (1.4 in)
1946	47.2 mm (1.9 in)
1947	60.8 mm (2.4 in)
1948	79.5 mm (3.1 in)
1949	128.8 mm (5.1 in)
1950	50.5 mm (2.0 in)
1951	70.3 mm (2.8 in)
1952	153.2 mm (6.0 in)
1953	74.5 mm (2.9 in)
1954	67.9 mm (2.7 in)
1955	68.4 mm (2.7 in)
1956	84.6 mm (3.3 in)
1957	99.1 mm (3.9 in)
1958	55.6 mm (2.2 in)
1959	94.0 mm (3.7 in)
1960	63.8 mm (2.5 in)
1961	95.5 mm (3.8 in)
1962	91.6 mm (3.6 in)
1963	72.9 mm (2.9 in)
1964	69.1 mm (2.7 in)
1965	62.7 mm (2.5 in)
1966	72.9 mm (2.9 in)
1967	95.0 mm (3.7 in)
1968	168.2 mm (6.6 in)
1969	78.2 mm (3.1 in)
1970	50.8 mm (2.0 in)
1971	59.5 mm (2.3 in)
1972	35.8 mm (1.4 in)
1973	64.2 mm (2.5 in)
1974	57.0 mm (2.2 in)
1975	91.0 mm (3.6 in)
1976	89.7 mm (3.5 in)
1977	87.6 mm (3.4 in)
1978	104.5 mm (4.1 in)
1979	89.0 mm (3.5 in)
1980	43.4 mm (1.7 in)
1981	81.3 mm (3.2 in)
1982	46.6 mm (1.8 in)
1983	84.1 mm (3.3 in)
1984	109.0 mm (4.3 in)
1985	95.0 mm (3.7 in)
1986	53.9 mm (2.1 in)
1987	82.7 mm (3.3 in)
1988	93.6 mm (3.7 in)
1989	59.7 mm (2.4 in)
1990	52.5 mm (2.1 in)
1991	94.1 mm (3.7 in)
1992	74.3 mm (2.9 in)
1993	45.4 mm (1.8 in)
1994	118.0 mm (4.6 in)
1995	28.3 mm (1.1 in)
1996	61.7 mm (2.4 in)
1997	82.1 mm (3.2 in)
1998	62.8 mm (2.5 in)
1999	52.2 mm (2.1 in)
2000	49.8 mm (2.0 in)
2001	n/a
2002	63.8 mm (2.5 in)
2003	50.2 mm (2.0 in)
2004	95.5 mm (3.8 in)
2005	46.4 mm (1.8 in)
2006	81.5 mm (3.2 in)
2007	55.9 mm (2.2 in)
2008	79.1 mm (3.1 in)
2009	90.6 mm (3.6 in)
2010	89.4 mm (3.5 in)
2011	71.1 mm (2.8 in)
2012	153.0 mm (6.0 in)
2013	54.4 mm (2.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Polis, 1916 to 2013. The record is 228 days in 1990, marked on the chart; the median year is 141 days.

Longest dry spell (CDD) at Polis by year
Year	Longest dry spell (CDD)
1916	68 days
1917	157 days
1918	135 days
1919	98 days
1920	117 days
1921	120 days
1922	143 days
1923	212 days
1924	205 days
1925	120 days
1926	98 days
1927	172 days
1928	204 days
1929	116 days
1930	128 days
1931	201 days
1932	141 days
1933	105 days
1934	116 days
1935	158 days
1936	115 days
1937	141 days
1938	121 days
1939	137 days
1940	154 days
1941	185 days
1942	133 days
1943	148 days
1944	179 days
1945	196 days
1946	139 days
1947	134 days
1948	125 days
1949	173 days
1950	137 days
1951	163 days
1952	136 days
1953	212 days
1954	159 days
1955	177 days
1956	161 days
1957	127 days
1958	110 days
1959	153 days
1960	161 days
1961	118 days
1962	138 days
1963	144 days
1964	74 days
1965	142 days
1966	166 days
1967	149 days
1968	114 days
1969	159 days
1970	160 days
1971	149 days
1972	93 days
1973	119 days
1974	168 days
1975	103 days
1976	121 days
1977	103 days
1978	185 days
1979	119 days
1980	170 days
1981	157 days
1982	128 days
1983	137 days
1984	190 days
1985	137 days
1986	109 days
1987	161 days
1988	142 days
1989	148 days
1990	228 days
1991	131 days
1992	115 days
1993	170 days
1994	140 days
1995	147 days
1996	171 days
1997	146 days
1998	164 days
1999	153 days
2000	30 days
2001	n/a
2002	170 days
2003	93 days
2004	166 days
2005	138 days
2006	140 days
2007	145 days
2008	145 days
2009	113 days
2010	133 days
2011	117 days
2012	106 days
2013	140 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.

Rainfall Return Levels

95 years, 1917 to 2013

A day with at least 38.9 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 94.5 mm (3.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Polis: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	38.9 mm (1.5 in)
5 years	52.7 mm (2.1 in)
10 years	62.3 mm (2.5 in)
25 years	74.9 mm (2.9 in)
50 years	84.6 mm (3.3 in)
100 years	94.5 mm (3.7 in)	Longer than the 95 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, 95 years of values from 1917 to 2013.

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: 114.0 mm (4.5 in) in 1936; 82.5 mm (3.2 in) in 1968; 80.8 mm (3.2 in) in 1949.

Download the Data

Data for Polis standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Polis 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).