Crystal Falls Weather Records (CA006081928)

Record envelope, standing records and threshold days for Crystal Falls (CA006081928), Ontario, Canada, with 67 years of record.

Key Facts for Crystal Falls

Crystal Falls (CA006081928) is a weather station in Ontario, Canada at 46.45 latitude and -79.87 longitude, 227 m (745 ft) above sea level.
The station reports from 1922 to 1988, 67 years of record.
1,464 records set at Crystal Falls still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Crystal Falls set a daily record low maximum temperature of -22.0 C (-7.6 F) on 24 December 1983.

About the Station

Location: Ontario, Canada, 46.45 latitude, -79.87 longitude.
Elevation: 227 m (745 ft).
Period of record: 1922 to 1988, 67 years.
Eligible elements: tmax, tmin, prcp, snow.

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 Crystal Falls. 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 Crystal Falls, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	12.2 C (54.0 F)	-46.1 C (-51.0 F)	n/a	n/a
Feb	14.4 C (57.9 F)	-48.9 C (-56.0 F)	n/a	n/a
Mar	25.0 C (77.0 F)	-45.6 C (-50.1 F)	n/a	n/a
Apr	28.3 C (82.9 F)	-27.2 C (-17.0 F)	n/a	n/a
May	31.7 C (89.1 F)	-10.0 C (14.0 F)	n/a	n/a
Jun	33.3 C (91.9 F)	-3.3 C (26.1 F)	n/a	n/a
Jul	37.8 C (100.0 F)	0.0 C (32.0 F)	n/a	n/a
Aug	36.7 C (98.1 F)	-2.0 C (28.4 F)	n/a	n/a
Sep	34.4 C (93.9 F)	-6.7 C (19.9 F)	n/a	n/a
Oct	26.7 C (80.1 F)	-14.4 C (6.1 F)	n/a	n/a
Nov	20.0 C (68.0 F)	-32.8 C (-27.0 F)	n/a	n/a
Dec	15.0 C (59.0 F)	-43.0 C (-45.4 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Crystal Falls still stand. 1936 holds the most, with 44.

Standing records at Crystal Falls by the year they were set
Year set	Standing records
1922	18
1923	43
1924	31
1925	41
1926	35
1928	18
1929	33
1930	31
1931	24
1932	30
1933	38
1934	33
1935	21
1936	44
1937	21
1938	35
1939	24
1940	20
1941	20
1942	29
1943	18
1944	21
1945	28
1946	41
1947	43
1948	21
1949	22
1950	29
1951	26
1952	8
1953	17
1954	14
1955	7
1956	21
1957	23
1958	16
1959	27
1960	10
1961	14
1962	20
1963	25
1964	26
1965	27
1966	16
1967	16
1968	23
1969	14
1970	18
1971	18
1972	12
1973	22
1974	15
1975	18
1976	31
1977	26
1978	16
1979	26
1980	22
1981	29
1982	26
1983	23

All-Time Record Progression

1 new records

1 all-time records were set at Crystal Falls between 25 February 1965 and 25 February 1965. Each dot is a new record.

Wettest Day of Each Month

Jul: 97.3 mm (3.8 in)

The wettest day on record for each calendar month at Crystal Falls. The most was 97.3 mm (3.8 in) on 5 July 1948.

Record daily precipitation for each month at Crystal Falls
Month	Record daily precipitation (mm)	Date
Jan	39.1 mm (1.5 in)	12 January 1932
Feb	38.1 mm (1.5 in)	25 February 1965
Mar	37.1 mm (1.5 in)	25 March 1947
Apr	52.3 mm (2.1 in)	5 April 1929
May	38.1 mm (1.5 in)	5 May 1975
Jun	65.0 mm (2.6 in)	26 June 1930
Jul	97.3 mm (3.8 in)	5 July 1948
Aug	56.1 mm (2.2 in)	16 August 1932
Sep	71.1 mm (2.8 in)	5 September 1931
Oct	68.8 mm (2.7 in)	2 October 1968
Nov	50.8 mm (2.0 in)	17 November 1931
Dec	45.7 mm (1.8 in)	20 December 1957

Period of Record Coverage

1922 to 1983

61 years of record at Crystal Falls, 1922 to 1983. 4 years have data for under 90 percent of days and are left out of rankings: 1922, 1957, 1958, 1971.

Days with data per year at Crystal Falls
Year	Days with data	Share of year	Complete
1922	243	67%	No
1923	362	99%	Yes
1924	366	100%	Yes
1925	360	99%	Yes
1926	363	99%	Yes
1928	351	96%	Yes
1929	334	92%	Yes
1930	365	100%	Yes
1931	365	100%	Yes
1932	366	100%	Yes
1933	365	100%	Yes
1934	364	100%	Yes
1935	364	100%	Yes
1936	366	100%	Yes
1937	365	100%	Yes
1938	364	100%	Yes
1939	360	99%	Yes
1940	365	100%	Yes
1941	365	100%	Yes
1942	365	100%	Yes
1943	360	99%	Yes
1944	365	100%	Yes
1945	364	100%	Yes
1946	363	99%	Yes
1947	365	100%	Yes
1948	365	100%	Yes
1949	365	100%	Yes
1950	365	100%	Yes
1951	365	100%	Yes
1952	335	92%	Yes
1953	333	91%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	365	100%	Yes
1957	290	79%	No
1958	320	88%	No
1959	365	100%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	364	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	363	99%	Yes
1970	365	100%	Yes
1971	220	60%	No
1972	333	91%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	364	99%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	364	100%	Yes
1982	363	99%	Yes
1983	364	100%	Yes

Latest Records

Latest records at Crystal Falls
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
24 December 1983	Crystal Falls, CA	daily low max	-22.0 C (-7.6 F)	4.2 C (7.6 F)	14 years	16 of 100 (Routine)
21 December 1983	Crystal Falls, CA	daily rain (Tie)	13.0 mm (0.5 in)	tie	32 years	3 of 100 (Routine)
21 December 1983	Crystal Falls, CA	daily snowfall (Tie)	13.0 cm (5.1 in)	tie	32 years	3 of 100 (Routine)
3 October 1983	Crystal Falls, CA	daily rain	34.7 mm (1.4 in)	16.7 mm (0.7 in)	28 years	34 of 100 (Routine)
3 October 1983	Crystal Falls, CA	daily high min	13.0 C (55.4 F)	0.2 C (0.4 F)	9 years	8 of 100 (Routine)
20 September 1983	Crystal Falls, CA	daily rain	57.0 mm (2.2 in)	10.3 mm (0.4 in)	16 years	20 of 100 (Routine)
6 September 1983	Crystal Falls, CA	daily high min	21.0 C (69.8 F)	2.1 C (3.8 F)	13 years	13 of 100 (Routine)
17 August 1983	Crystal Falls, CA	daily rain	42.3 mm (1.7 in)	10.0 mm (0.4 in)	44 years	30 of 100 (Routine)
15 July 1983	Crystal Falls, CA	daily high max	35.0 C (95.0 F)	3.3 C (5.9 F)	36 years	24 of 100 (Routine)
10 July 1983	Crystal Falls, CA	daily low min	3.0 C (37.4 F)	1.4 C (2.5 F)	30 years	18 of 100 (Routine)
6 July 1983	Crystal Falls, CA	daily low min	0.5 C (32.9 F)	0.6 C (1.1 F)	17 years	12 of 100 (Routine)
4 July 1983	Crystal Falls, CA	daily high min	22.0 C (71.6 F)	4.8 C (8.6 F)	33 years	27 of 100 (Routine)
23 June 1983	Crystal Falls, CA	daily high max	32.0 C (89.6 F)	0.9 C (1.6 F)	37 years	18 of 100 (Routine)
22 June 1983	Crystal Falls, CA	daily high max	31.0 C (87.8 F)	1.0 C (1.8 F)	8 years	10 of 100 (Routine)
21 June 1983	Crystal Falls, CA	daily high max	32.0 C (89.6 F)	1.4 C (2.5 F)	41 years	21 of 100 (Routine)
20 June 1983	Crystal Falls, CA	daily high max	32.0 C (89.6 F)	0.9 C (1.6 F)	44 years	20 of 100 (Routine)
15 June 1983	Crystal Falls, CA	daily high max	31.0 C (87.8 F)	1.6 C (2.9 F)	50 years	24 of 100 (Routine)
14 June 1983	Crystal Falls, CA	daily high max	32.0 C (89.6 F)	0.9 C (1.6 F)	52 years	22 of 100 (Routine)
29 May 1983	Crystal Falls, CA	daily rain	14.8 mm (0.6 in)	3.1 mm (0.12 in)	14 years	14 of 100 (Routine)
26 May 1983	Crystal Falls, CA	daily low max	6.5 C (43.7 F)	0.2 C (0.4 F)	21 years	12 of 100 (Routine)

Climate Trend

51 complete years, 1923 to 1983

One stripe for each of 51 complete years at Crystal Falls, 1923 to 1983. Blue stripes are years cooler than the station's own mean of 3.2 C (37.7 F); red stripes are warmer. The coolest year was 1926, at 0.4 C (32.8 F), and the warmest was 1931, at 5.2 C (41.4 F). The strongest colour marks a difference of 2.8 C (5.0 F).

Annual mean temperature at Crystal Falls as warming stripes, 1923 to 1983
Year	Annual mean temperature	Difference from the station mean
1923	1.5 C	-1.66 C
1924	0.9 C	-2.34 C
1925	1.6 C	-1.64 C
1926	0.4 C	-2.76 C
1930	3.9 C	+0.70 C
1931	5.2 C	+2.02 C
1932	4.3 C	+1.11 C
1933	3.6 C	+0.37 C
1934	2.6 C	-0.58 C
1935	2.9 C	-0.31 C
1936	2.6 C	-0.63 C
1937	4.2 C	+1.02 C
1938	4.4 C	+1.20 C
1939	3.4 C	+0.18 C
1940	2.2 C	-1.01 C
1941	3.3 C	+0.07 C
1942	3.4 C	+0.17 C
1943	2.2 C	-1.01 C
1944	3.3 C	+0.13 C
1945	2.9 C	-0.25 C
1946	3.4 C	+0.25 C
1947	3.2 C	-0.02 C
1948	3.7 C	+0.55 C
1949	4.0 C	+0.82 C
1950	2.5 C	-0.74 C
1951	3.0 C	-0.20 C
1955	3.6 C	+0.42 C
1956	2.0 C	-1.15 C
1959	3.4 C	+0.17 C
1960	3.5 C	+0.34 C
1961	4.0 C	+0.84 C
1962	3.3 C	+0.07 C
1963	2.9 C	-0.26 C
1964	4.1 C	+0.90 C
1965	3.0 C	-0.24 C
1966	3.8 C	+0.56 C
1967	3.0 C	-0.19 C
1968	3.5 C	+0.29 C
1969	3.4 C	+0.22 C
1970	2.8 C	-0.41 C
1973	4.5 C	+1.35 C
1974	3.3 C	+0.14 C
1975	4.2 C	+0.99 C
1976	2.7 C	-0.52 C
1977	4.0 C	+0.85 C
1978	2.7 C	-0.47 C
1979	3.4 C	+0.18 C
1980	2.5 C	-0.74 C
1981	4.3 C	+1.06 C
1982	2.8 C	-0.40 C
1983	3.7 C	+0.55 C

The annual mean temperature here has risen by 0.15 C (0.01 to 0.29) per decade over 1923 to 1983. In Fahrenheit: 0.26 F (0.01 to 0.51) per decade. The slope is a straight line fitted to 51 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Crystal Falls
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.15 C (0.01 to 0.29) per decade	0.26 F (0.01 to 0.51) per decade	1923 to 1983	51	Rise
Mean daily maximum	0.1 C (-0.1 to 0.3) per decade	0.2 F (-0.2 to 0.5) per decade	1923 to 1983	51	Not clearly different from zero
Mean daily minimum	0.2 C (0.1 to 0.4) per decade	0.4 F (0.1 to 0.6) per decade	1923 to 1983	51	Rise

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

1922 to 1983

Yearly extremes at Crystal Falls: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.8 C (100.0 F)	1936	31.7 C (89.1 F)	61
Coldest night (TNn)	-48.9 C (-56.0 F)	1934	-41.1 C (-42.0 F)	61
Wettest day (Rx1day)	97.3 mm (3.8 in)	1948	42.2 mm (1.7 in)	61
Wettest five days (Rx5day)	117.9 mm (4.6 in)	1972	67.3 mm (2.6 in)	61
Longest dry spell (CDD)	34 days	1958	15 days	61

Hottest day (TXx)

The hottest day of the year at Crystal Falls, 1922 to 1983. The record is 37.8 C (100.0 F) in 1936, marked on the chart; the median year is 31.7 C (89.1 F).

Hottest day (TXx) at Crystal Falls by year
Year	Hottest day (TXx)
1922	31.7 C (89.1 F)
1923	30.0 C (86.0 F)
1924	26.1 C (79.0 F)
1925	30.0 C (86.0 F)
1926	27.2 C (81.0 F)
1928	30.0 C (86.0 F)
1929	31.1 C (88.0 F)
1930	31.1 C (88.0 F)
1931	36.1 C (97.0 F)
1932	31.1 C (88.0 F)
1933	32.8 C (91.0 F)
1934	31.7 C (89.1 F)
1935	33.9 C (93.0 F)
1936	37.8 C (100.0 F)
1937	32.2 C (90.0 F)
1938	34.4 C (93.9 F)
1939	33.9 C (93.0 F)
1940	31.1 C (88.0 F)
1941	32.2 C (90.0 F)
1942	31.1 C (88.0 F)
1943	33.9 C (93.0 F)
1944	33.3 C (91.9 F)
1945	32.8 C (91.0 F)
1946	32.2 C (90.0 F)
1947	33.9 C (93.0 F)
1948	36.7 C (98.1 F)
1949	32.8 C (91.0 F)
1950	30.6 C (87.1 F)
1951	30.6 C (87.1 F)
1952	32.8 C (91.0 F)
1953	34.4 C (93.9 F)
1954	28.9 C (84.0 F)
1955	33.9 C (93.0 F)
1956	31.7 C (89.1 F)
1957	31.1 C (88.0 F)
1958	28.9 C (84.0 F)
1959	31.1 C (88.0 F)
1960	29.4 C (84.9 F)
1961	28.9 C (84.0 F)
1962	31.7 C (89.1 F)
1963	33.3 C (91.9 F)
1964	33.3 C (91.9 F)
1965	29.4 C (84.9 F)
1966	35.0 C (95.0 F)
1967	30.6 C (87.1 F)
1968	31.7 C (89.1 F)
1969	30.6 C (87.1 F)
1970	31.7 C (89.1 F)
1971	32.2 C (90.0 F)
1972	30.0 C (86.0 F)
1973	31.7 C (89.1 F)
1974	30.6 C (87.1 F)
1975	35.0 C (95.0 F)
1976	31.7 C (89.1 F)
1977	32.8 C (91.0 F)
1978	32.0 C (89.6 F)
1979	31.0 C (87.8 F)
1980	31.5 C (88.7 F)
1981	33.0 C (91.4 F)
1982	31.0 C (87.8 F)
1983	35.0 C (95.0 F)

Coldest night (TNn)

The coldest night of the year at Crystal Falls, 1922 to 1983. The record is -48.9 C (-56.0 F) in 1934, marked on the chart; the median year is -41.1 C (-42.0 F).

Coldest night (TNn) at Crystal Falls by year
Year	Coldest night (TNn)
1922	-30.0 C (-22.0 F)
1923	-42.8 C (-45.0 F)
1924	-41.1 C (-42.0 F)
1925	-37.2 C (-35.0 F)
1926	-38.3 C (-36.9 F)
1928	-42.8 C (-45.0 F)
1929	-41.1 C (-42.0 F)
1930	-42.2 C (-44.0 F)
1931	-38.9 C (-38.0 F)
1932	-36.7 C (-34.1 F)
1933	-38.9 C (-38.0 F)
1934	-48.9 C (-56.0 F)
1935	-42.8 C (-45.0 F)
1936	-40.0 C (-40.0 F)
1937	-38.9 C (-38.0 F)
1938	-40.6 C (-41.1 F)
1939	-42.8 C (-45.0 F)
1940	-35.6 C (-32.1 F)
1941	-40.0 C (-40.0 F)
1942	-46.1 C (-51.0 F)
1943	-45.6 C (-50.1 F)
1944	-38.9 C (-38.0 F)
1945	-44.4 C (-47.9 F)
1946	-41.7 C (-43.1 F)
1947	-41.1 C (-42.0 F)
1948	-41.1 C (-42.0 F)
1949	-35.0 C (-31.0 F)
1950	-45.6 C (-50.1 F)
1951	-46.7 C (-52.1 F)
1952	-41.7 C (-43.1 F)
1953	-37.2 C (-35.0 F)
1954	-25.0 C (-13.0 F)
1955	-38.9 C (-38.0 F)
1956	-33.9 C (-29.0 F)
1957	-42.8 C (-45.0 F)
1958	-41.1 C (-42.0 F)
1959	-41.1 C (-42.0 F)
1960	-41.7 C (-43.1 F)
1961	-37.2 C (-35.0 F)
1962	-43.3 C (-45.9 F)
1963	-40.6 C (-41.1 F)
1964	-39.4 C (-38.9 F)
1965	-45.0 C (-49.0 F)
1966	-37.8 C (-36.0 F)
1967	-44.4 C (-47.9 F)
1968	-45.0 C (-49.0 F)
1969	-36.7 C (-34.1 F)
1970	-40.6 C (-41.1 F)
1971	-42.8 C (-45.0 F)
1972	-40.6 C (-41.1 F)
1973	-41.1 C (-42.0 F)
1974	-37.2 C (-35.0 F)
1975	-40.6 C (-41.1 F)
1976	-43.9 C (-47.0 F)
1977	-37.8 C (-36.0 F)
1978	-39.5 C (-39.1 F)
1979	-42.0 C (-43.6 F)
1980	-43.0 C (-45.4 F)
1981	-44.0 C (-47.2 F)
1982	-43.0 C (-45.4 F)
1983	-42.0 C (-43.6 F)

Wettest day (Rx1day)

The wettest day of the year at Crystal Falls, 1922 to 1983. The record is 97.3 mm (3.8 in) in 1948, marked on the chart; the median year is 42.2 mm (1.7 in).

Wettest day (Rx1day) at Crystal Falls by year
Year	Wettest day (Rx1day)
1922	40.4 mm (1.6 in)
1923	35.6 mm (1.4 in)
1924	35.8 mm (1.4 in)
1925	42.7 mm (1.7 in)
1926	34.3 mm (1.4 in)
1928	57.9 mm (2.3 in)
1929	52.3 mm (2.1 in)
1930	65.0 mm (2.6 in)
1931	71.1 mm (2.8 in)
1932	56.1 mm (2.2 in)
1933	31.8 mm (1.3 in)
1934	42.7 mm (1.7 in)
1935	33.0 mm (1.3 in)
1936	29.5 mm (1.2 in)
1937	38.1 mm (1.5 in)
1938	42.2 mm (1.7 in)
1939	39.9 mm (1.6 in)
1940	26.7 mm (1.1 in)
1941	42.2 mm (1.7 in)
1942	34.5 mm (1.4 in)
1943	43.7 mm (1.7 in)
1944	33.8 mm (1.3 in)
1945	53.8 mm (2.1 in)
1946	49.0 mm (1.9 in)
1947	48.8 mm (1.9 in)
1948	97.3 mm (3.8 in)
1949	52.1 mm (2.1 in)
1950	24.6 mm (1.0 in)
1951	40.6 mm (1.6 in)
1952	34.3 mm (1.4 in)
1953	31.8 mm (1.3 in)
1954	55.9 mm (2.2 in)
1955	77.5 mm (3.1 in)
1956	46.7 mm (1.8 in)
1957	49.0 mm (1.9 in)
1958	34.3 mm (1.4 in)
1959	56.1 mm (2.2 in)
1960	48.8 mm (1.9 in)
1961	40.1 mm (1.6 in)
1962	33.8 mm (1.3 in)
1963	48.3 mm (1.9 in)
1964	25.4 mm (1.0 in)
1965	38.1 mm (1.5 in)
1966	29.2 mm (1.1 in)
1967	46.7 mm (1.8 in)
1968	68.8 mm (2.7 in)
1969	49.8 mm (2.0 in)
1970	42.7 mm (1.7 in)
1971	31.0 mm (1.2 in)
1972	47.8 mm (1.9 in)
1973	31.2 mm (1.2 in)
1974	41.9 mm (1.6 in)
1975	38.1 mm (1.5 in)
1976	34.5 mm (1.4 in)
1977	74.9 mm (2.9 in)
1978	59.2 mm (2.3 in)
1979	49.8 mm (2.0 in)
1980	46.6 mm (1.8 in)
1981	29.4 mm (1.2 in)
1982	35.8 mm (1.4 in)
1983	57.0 mm (2.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Crystal Falls, 1922 to 1983. The record is 117.9 mm (4.6 in) in 1972, marked on the chart; the median year is 67.3 mm (2.6 in).

Wettest five days (Rx5day) at Crystal Falls by year
Year	Wettest five days (Rx5day)
1922	53.4 mm (2.1 in)
1923	52.1 mm (2.1 in)
1924	65.0 mm (2.6 in)
1925	56.9 mm (2.2 in)
1926	89.6 mm (3.5 in)
1928	111.6 mm (4.4 in)
1929	103.3 mm (4.1 in)
1930	106.5 mm (4.2 in)
1931	104.6 mm (4.1 in)
1932	75.4 mm (3.0 in)
1933	48.2 mm (1.9 in)
1934	61.3 mm (2.4 in)
1935	75.2 mm (3.0 in)
1936	58.5 mm (2.3 in)
1937	67.3 mm (2.6 in)
1938	62.7 mm (2.5 in)
1939	64.6 mm (2.5 in)
1940	63.7 mm (2.5 in)
1941	66.9 mm (2.6 in)
1942	61.2 mm (2.4 in)
1943	71.9 mm (2.8 in)
1944	53.3 mm (2.1 in)
1945	75.7 mm (3.0 in)
1946	52.8 mm (2.1 in)
1947	93.6 mm (3.7 in)
1948	105.9 mm (4.2 in)
1949	56.6 mm (2.2 in)
1950	46.3 mm (1.8 in)
1951	82.6 mm (3.3 in)
1952	89.1 mm (3.5 in)
1953	46.3 mm (1.8 in)
1954	84.3 mm (3.3 in)
1955	78.5 mm (3.1 in)
1956	68.2 mm (2.7 in)
1957	103.9 mm (4.1 in)
1958	65.0 mm (2.6 in)
1959	106.1 mm (4.2 in)
1960	54.9 mm (2.2 in)
1961	68.5 mm (2.7 in)
1962	45.0 mm (1.8 in)
1963	68.4 mm (2.7 in)
1964	44.5 mm (1.8 in)
1965	80.0 mm (3.1 in)
1966	43.2 mm (1.7 in)
1967	69.7 mm (2.7 in)
1968	80.8 mm (3.2 in)
1969	63.8 mm (2.5 in)
1970	70.4 mm (2.8 in)
1971	59.0 mm (2.3 in)
1972	117.9 mm (4.6 in)
1973	45.4 mm (1.8 in)
1974	69.6 mm (2.7 in)
1975	62.0 mm (2.4 in)
1976	63.2 mm (2.5 in)
1977	78.7 mm (3.1 in)
1978	67.8 mm (2.7 in)
1979	66.4 mm (2.6 in)
1980	104.6 mm (4.1 in)
1981	55.9 mm (2.2 in)
1982	64.5 mm (2.5 in)
1983	92.6 mm (3.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Crystal Falls, 1922 to 1983. The record is 34 days in 1958, marked on the chart; the median year is 15 days.

Longest dry spell (CDD) at Crystal Falls by year
Year	Longest dry spell (CDD)
1922	24 days
1923	16 days
1924	21 days
1925	16 days
1926	15 days
1928	10 days
1929	18 days
1930	12 days
1931	14 days
1932	13 days
1933	15 days
1934	10 days
1935	16 days
1936	11 days
1937	17 days
1938	12 days
1939	19 days
1940	15 days
1941	18 days
1942	15 days
1943	12 days
1944	21 days
1945	14 days
1946	12 days
1947	20 days
1948	18 days
1949	13 days
1950	15 days
1951	11 days
1952	19 days
1953	14 days
1954	15 days
1955	10 days
1956	17 days
1957	16 days
1958	34 days
1959	11 days
1960	12 days
1961	27 days
1962	11 days
1963	16 days
1964	13 days
1965	17 days
1966	14 days
1967	21 days
1968	12 days
1969	22 days
1970	15 days
1971	16 days
1972	14 days
1973	11 days
1974	14 days
1975	14 days
1976	16 days
1977	18 days
1978	22 days
1979	12 days
1980	11 days
1981	12 days
1982	11 days
1983	11 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

51 years with a frost

Across 51 years with a frost, the median last spring frost at Crystal Falls falls on 3 June and the median first autumn frost on 9 September, which leaves a median of 98 days between them.

Fitted over all years, the growing season changes by +4.0 days per decade at this station.

Frost dates and growing season at Crystal Falls
Measure	Median, all years	Earliest period	Recent period (1947 to 1983)	Recent against earliest	Fitted trend
Last spring frost	3 June	n/a	3 June	n/a	-1.4 days per decade
First autumn frost	9 September	n/a	10 September	n/a	+2.6 days per decade
Growing days	98 days	n/a	102 days	n/a	+4.0 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

60 years, 1923 to 1983

A day with at least 42.0 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 92.9 mm (3.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Crystal Falls: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	42.0 mm (1.7 in)
5 years	54.3 mm (2.1 in)
10 years	63.0 mm (2.5 in)
25 years	74.5 mm (2.9 in)
50 years	83.5 mm (3.3 in)
100 years	92.9 mm (3.7 in)	Longer than the 60 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, 60 years of values from 1923 to 1983.

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: 97.3 mm (3.8 in) in 1948; 77.5 mm (3.1 in) in 1955; 74.9 mm (2.9 in) in 1977.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Crystal Falls, at 1959. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 1959 ran 0.4 C (0.7 F) higher than in the years before (likely change).

Suspected changes in the annual mean temperature at Crystal Falls, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
1959	+0.4	+0.7	likely	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 Crystal Falls standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Crystal Falls 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).