Record envelope, standing records and threshold days for Elk Valley (USC00042749), California, United States, with 39 years of record.
Key Facts for Elk Valley
Elk Valley (USC00042749) is a weather station in California, United States at 41.99 latitude and -123.72 longitude, 521 m (1,708 ft) above sea level.
The station reports from 1938 to 1976, 39 years of record.
1,464 records set at Elk Valley still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Elk Valley set a daily record low minimum temperature of -5.6 C (21.9 F) on 14 April 1976.
About the Station
Location: California, United States, 41.99 latitude, -123.72 longitude.
Elevation: 521 m (1,708 ft).
Period of record: 1938 to 1976, 39 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Elk Valley. 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 Elk Valley, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
19.4 C (66.9 F)
-17.8 C (0.0 F)
n/a
n/a
Feb
22.2 C (72.0 F)
-15.6 C (3.9 F)
n/a
n/a
Mar
27.2 C (81.0 F)
-7.8 C (18.0 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-6.7 C (19.9 F)
n/a
n/a
May
34.4 C (93.9 F)
-6.1 C (21.0 F)
n/a
n/a
Jun
39.4 C (102.9 F)
-1.7 C (28.9 F)
n/a
n/a
Jul
40.6 C (105.1 F)
0.0 C (32.0 F)
n/a
n/a
Aug
39.4 C (102.9 F)
-1.7 C (28.9 F)
n/a
n/a
Sep
38.9 C (102.0 F)
-6.1 C (21.0 F)
n/a
n/a
Oct
31.1 C (88.0 F)
-6.1 C (21.0 F)
n/a
n/a
Nov
21.7 C (71.1 F)
-9.4 C (15.1 F)
n/a
n/a
Dec
18.9 C (66.0 F)
-18.9 C (-2.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Elk Valley still stand. 1972 holds the most, with 60.
Standing records at Elk Valley by the year they were set
Year set
Standing records
1938
43
1939
49
1940
29
1941
38
1942
32
1943
31
1944
26
1945
37
1946
34
1947
32
1948
41
1949
48
1950
47
1951
19
1952
57
1953
33
1954
44
1955
50
1956
43
1957
41
1958
44
1959
27
1960
30
1961
39
1962
35
1963
38
1964
44
1965
33
1966
28
1967
33
1968
43
1969
23
1970
24
1971
43
1972
60
1973
38
1974
50
1975
56
1976
2
All-Time Record Progression
3 new records
3 all-time records were set at Elk Valley between 8 December 1972 and 10 December 1972. Each dot is a new record.
When Elk Valley set new all-time records
Date
Kind
Detail
1972-12-08
Record low maximum temperature
Record low maximum temperature -6.7 C (19.9 F)
1972-12-09
Record low minimum temperature
Record low minimum temperature -18.3 C (-0.9 F)
1972-12-10
Record low minimum temperature
Record low minimum temperature -18.9 C (-2.0 F)
Wettest Day of Each Month
Dec: 237.2 mm (9.3 in)
The wettest day on record for each calendar month at Elk Valley. The most was 237.2 mm (9.3 in) on 23 December 1964.
Record daily precipitation for each month at Elk Valley
Month
Record daily precipitation (mm)
Date
Jan
157.5 mm (6.2 in)
18 January 1953
Feb
163.8 mm (6.4 in)
21 February 1956
Mar
147.6 mm (5.8 in)
2 March 1972
Apr
71.6 mm (2.8 in)
2 April 1958
May
62.2 mm (2.4 in)
25 May 1942
Jun
41.4 mm (1.6 in)
2 June 1944
Jul
101.1 mm (4.0 in)
26 July 1947
Aug
41.7 mm (1.6 in)
25 August 1968
Sep
89.4 mm (3.5 in)
29 September 1971
Oct
167.6 mm (6.6 in)
29 October 1950
Nov
206.2 mm (8.1 in)
22 November 1953
Dec
237.2 mm (9.3 in)
23 December 1964
Period of Record Coverage
1938 to 1976
Complete yearUnder 90 percent of days
39 years of record at Elk Valley, 1938 to 1976. 4 years have data for under 90 percent of days and are left out of rankings: 1938, 1969, 1970, 1976.
Cooler than the station meanWarmer than the station mean
One stripe for each of 32 complete years at Elk Valley, 1939 to 1975. Blue stripes are years cooler than the station's own mean of 10.4 C (50.7 F); red stripes are warmer. The coolest year was 1948, at 8.9 C (48.1 F), and the warmest was 1958, at 12.1 C (53.7 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Elk Valley as warming stripes, 1939 to 1975
Year
Annual mean temperature
Difference from the station mean
1939
10.6 C
+0.21 C
1940
10.9 C
+0.57 C
1943
9.9 C
-0.52 C
1944
9.9 C
-0.45 C
1945
10.5 C
+0.13 C
1946
9.7 C
-0.65 C
1947
10.3 C
-0.09 C
1948
8.9 C
-1.43 C
1949
9.4 C
-0.96 C
1950
10.3 C
-0.05 C
1951
10.4 C
+0.02 C
1952
9.7 C
-0.69 C
1953
10.0 C
-0.40 C
1954
10.0 C
-0.40 C
1955
9.4 C
-0.95 C
1956
10.0 C
-0.37 C
1957
10.4 C
+0.05 C
1958
12.1 C
+1.72 C
1959
10.7 C
+0.38 C
1960
11.1 C
+0.72 C
1961
11.0 C
+0.63 C
1962
10.7 C
+0.30 C
1963
10.8 C
+0.38 C
1964
10.5 C
+0.16 C
1965
11.0 C
+0.60 C
1966
11.2 C
+0.87 C
1967
11.2 C
+0.81 C
1968
11.3 C
+0.91 C
1971
9.7 C
-0.65 C
1973
10.6 C
+0.27 C
1974
10.5 C
+0.11 C
1975
9.1 C
-1.23 C
The fitted trend in annual mean temperature here over 1939 to 1975 is 0.2 C (-0.1 to 0.4) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.3 F (-0.1 to 0.7) per decade. The slope is a straight line fitted to 32 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Elk Valley
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (-0.1 to 0.4) per decade
0.3 F (-0.1 to 0.7) per decade
1939 to 1975
32
Not clearly different from zero
Mean daily maximum
0.24 C (-0.03 to 0.52) per decade
0.4 F (-0.1 to 0.9) per decade
1939 to 1975
32
Not clearly different from zero
Mean daily minimum
0.1 C (-0.2 to 0.4) per decade
0.2 F (-0.4 to 0.7) per decade
1939 to 1975
32
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
1938 to 1976
Yearly extremes at Elk Valley: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.6 C (105.1 F)
1938
37.2 C (99.0 F)
39
Coldest night (TNn)
-18.9 C (-2.0 F)
1972
-8.9 C (16.0 F)
39
Wettest day (Rx1day)
237.2 mm (9.3 in)
1964
112.8 mm (4.4 in)
39
Wettest five days (Rx5day)
736.3 mm (29.0 in)
1964
273.6 mm (10.8 in)
39
Longest dry spell (CDD)
110 days
1974
66 days
39
Hottest day (TXx)
The hottest day of the year at Elk Valley, 1938 to 1976. The record is 40.6 C (105.1 F) in 1938, marked on the chart; the median year is 37.2 C (99.0 F).
Hottest day (TXx) at Elk Valley by year
Year
Hottest day (TXx)
1938
40.6 C (105.1 F)
1939
39.4 C (102.9 F)
1940
36.7 C (98.1 F)
1941
34.4 C (93.9 F)
1942
37.2 C (99.0 F)
1943
36.7 C (98.1 F)
1944
36.7 C (98.1 F)
1945
35.6 C (96.1 F)
1946
38.3 C (100.9 F)
1947
32.8 C (91.0 F)
1948
35.0 C (95.0 F)
1949
35.0 C (95.0 F)
1950
37.2 C (99.0 F)
1951
35.6 C (96.1 F)
1952
37.2 C (99.0 F)
1953
36.7 C (98.1 F)
1954
34.4 C (93.9 F)
1955
38.9 C (102.0 F)
1956
40.0 C (104.0 F)
1957
35.0 C (95.0 F)
1958
38.3 C (100.9 F)
1959
38.3 C (100.9 F)
1960
37.8 C (100.0 F)
1961
39.4 C (102.9 F)
1962
38.3 C (100.9 F)
1963
36.1 C (97.0 F)
1964
37.2 C (99.0 F)
1965
36.1 C (97.0 F)
1966
37.8 C (100.0 F)
1967
39.4 C (102.9 F)
1968
38.9 C (102.0 F)
1969
36.1 C (97.0 F)
1970
37.8 C (100.0 F)
1971
39.4 C (102.9 F)
1972
39.4 C (102.9 F)
1973
38.9 C (102.0 F)
1974
37.8 C (100.0 F)
1975
38.9 C (102.0 F)
1976
21.7 C (71.1 F)
Coldest night (TNn)
The coldest night of the year at Elk Valley, 1938 to 1976. The record is -18.9 C (-2.0 F) in 1972, marked on the chart; the median year is -8.9 C (16.0 F).
Coldest night (TNn) at Elk Valley by year
Year
Coldest night (TNn)
1938
-7.8 C (18.0 F)
1939
-6.7 C (19.9 F)
1940
-11.7 C (10.9 F)
1941
-5.0 C (23.0 F)
1942
-5.6 C (21.9 F)
1943
-11.7 C (10.9 F)
1944
-6.7 C (19.9 F)
1945
-11.1 C (12.0 F)
1946
-9.4 C (15.1 F)
1947
-10.6 C (12.9 F)
1948
-11.7 C (10.9 F)
1949
-17.8 C (0.0 F)
1950
-15.6 C (3.9 F)
1951
-8.9 C (16.0 F)
1952
-9.4 C (15.1 F)
1953
-6.7 C (19.9 F)
1954
-7.8 C (18.0 F)
1955
-8.9 C (16.0 F)
1956
-10.6 C (12.9 F)
1957
-12.2 C (10.0 F)
1958
-5.0 C (23.0 F)
1959
-6.7 C (19.9 F)
1960
-8.9 C (16.0 F)
1961
-8.9 C (16.0 F)
1962
-12.8 C (9.0 F)
1963
-10.6 C (12.9 F)
1964
-6.7 C (19.9 F)
1965
-10.6 C (12.9 F)
1966
-7.8 C (18.0 F)
1967
-8.3 C (17.1 F)
1968
-8.3 C (17.1 F)
1969
-10.0 C (14.0 F)
1970
-6.1 C (21.0 F)
1971
-9.4 C (15.1 F)
1972
-18.9 C (-2.0 F)
1973
-6.1 C (21.0 F)
1974
-12.8 C (9.0 F)
1975
-7.2 C (19.0 F)
1976
-6.7 C (19.9 F)
Wettest day (Rx1day)
The wettest day of the year at Elk Valley, 1938 to 1976. The record is 237.2 mm (9.3 in) in 1964, marked on the chart; the median year is 112.8 mm (4.4 in).
Wettest day (Rx1day) at Elk Valley by year
Year
Wettest day (Rx1day)
1938
104.6 mm (4.1 in)
1939
108.5 mm (4.3 in)
1940
90.9 mm (3.6 in)
1941
143.3 mm (5.6 in)
1942
106.7 mm (4.2 in)
1943
129.0 mm (5.1 in)
1944
71.9 mm (2.8 in)
1945
181.9 mm (7.2 in)
1946
107.2 mm (4.2 in)
1947
101.1 mm (4.0 in)
1948
112.8 mm (4.4 in)
1949
79.0 mm (3.1 in)
1950
167.6 mm (6.6 in)
1951
121.2 mm (4.8 in)
1952
97.0 mm (3.8 in)
1953
206.2 mm (8.1 in)
1954
109.0 mm (4.3 in)
1955
127.0 mm (5.0 in)
1956
163.8 mm (6.4 in)
1957
93.0 mm (3.7 in)
1958
97.5 mm (3.8 in)
1959
82.3 mm (3.2 in)
1960
118.6 mm (4.7 in)
1961
104.6 mm (4.1 in)
1962
139.7 mm (5.5 in)
1963
128.5 mm (5.1 in)
1964
237.2 mm (9.3 in)
1965
141.7 mm (5.6 in)
1966
145.8 mm (5.7 in)
1967
116.8 mm (4.6 in)
1968
73.9 mm (2.9 in)
1969
66.5 mm (2.6 in)
1970
120.7 mm (4.8 in)
1971
134.6 mm (5.3 in)
1972
157.0 mm (6.2 in)
1973
143.5 mm (5.6 in)
1974
101.9 mm (4.0 in)
1975
108.0 mm (4.3 in)
1976
17.5 mm (0.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Elk Valley, 1938 to 1976. The record is 736.3 mm (29.0 in) in 1964, marked on the chart; the median year is 273.6 mm (10.8 in).
Wettest five days (Rx5day) at Elk Valley by year
Year
Wettest five days (Rx5day)
1938
356.3 mm (14.0 in)
1939
257.6 mm (10.1 in)
1940
261.7 mm (10.3 in)
1941
260.4 mm (10.3 in)
1942
302.7 mm (11.9 in)
1943
266.1 mm (10.5 in)
1944
236.5 mm (9.3 in)
1945
343.3 mm (13.5 in)
1946
248.3 mm (9.8 in)
1947
152.2 mm (6.0 in)
1948
273.6 mm (10.8 in)
1949
154.4 mm (6.1 in)
1950
461.0 mm (18.1 in)
1951
282.6 mm (11.1 in)
1952
266.7 mm (10.5 in)
1953
460.0 mm (18.1 in)
1954
299.3 mm (11.8 in)
1955
485.4 mm (19.1 in)
1956
417.5 mm (16.4 in)
1957
268.2 mm (10.6 in)
1958
257.2 mm (10.1 in)
1959
232.0 mm (9.1 in)
1960
310.6 mm (12.2 in)
1961
259.8 mm (10.2 in)
1962
270.3 mm (10.6 in)
1963
232.4 mm (9.1 in)
1964
736.3 mm (29.0 in)
1965
260.8 mm (10.3 in)
1966
470.0 mm (18.5 in)
1967
315.5 mm (12.4 in)
1968
189.2 mm (7.4 in)
1969
176.1 mm (6.9 in)
1970
337.2 mm (13.3 in)
1971
385.4 mm (15.2 in)
1972
372.2 mm (14.7 in)
1973
327.6 mm (12.9 in)
1974
313.3 mm (12.3 in)
1975
324.6 mm (12.8 in)
1976
40.3 mm (1.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Elk Valley, 1938 to 1976. The record is 110 days in 1974, marked on the chart; the median year is 66 days.
Longest dry spell (CDD) at Elk Valley by year
Year
Longest dry spell (CDD)
1938
74 days
1939
16 days
1940
92 days
1941
21 days
1942
74 days
1943
27 days
1944
35 days
1945
79 days
1946
54 days
1947
51 days
1948
70 days
1949
98 days
1950
92 days
1951
82 days
1952
39 days
1953
72 days
1954
70 days
1955
82 days
1956
39 days
1957
73 days
1958
33 days
1959
54 days
1960
87 days
1961
54 days
1962
61 days
1963
72 days
1964
66 days
1965
39 days
1966
47 days
1967
89 days
1968
76 days
1969
63 days
1970
67 days
1971
31 days
1972
66 days
1973
65 days
1974
110 days
1975
43 days
1976
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
32 years with a frost
Across 32 years with a frost, the median last spring frost at Elk Valley falls on 24 May and the median first autumn frost on 29 September, which leaves a median of 122 days between them.
Fitted over all years, the growing season changes by -3.8 days per decade at this station.
Frost dates and growing season at Elk Valley
Measure
Median, all years
Earliest period
Recent period (1943 to 1975)
Recent against earliest
Fitted trend
Last spring frost
24 May
n/a
24 May
n/a
-0.1 days per decade
First autumn frost
29 September
n/a
29 September
n/a
-3.9 days per decade
Growing days
122 days
n/a
122 days
n/a
-3.8 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
33 years, 1940 to 1975
A day with at least 116.5 mm (4.6 in) of rain is expected about once in 2 years. A day with at least 254.3 mm (10.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Elk Valley: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
116.5 mm (4.6 in)
5 years
149.6 mm (5.9 in)
10 years
173.0 mm (6.8 in)
25 years
204.2 mm (8.0 in)
50 years
228.7 mm (9.0 in)
Longer than the 33 years of record
100 years
254.3 mm (10.0 in)
Longer than the 33 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, 33 years of values from 1940 to 1975.
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: 237.2 mm (9.3 in) in 1964; 206.2 mm (8.1 in) in 1953; 181.9 mm (7.2 in) in 1945.
Download the Data
Data for Elk Valley standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Elk Valley 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.