Record envelope, standing records and threshold days for Bear River Refuge (USC00420506), Utah, United States, with 48 years of record.
Key Facts for Bear River Refuge
Bear River Refuge (USC00420506) is a weather station in Utah, United States at 41.47 latitude and -112.27 longitude, 1,284 m (4,213 ft) above sea level.
The station reports from 1937 to 1984, 48 years of record.
1,464 records set at Bear River Refuge still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Bear River Refuge set a daily record low maximum temperature of -0.6 C (30.9 F) on 23 February 1984.
About the Station
Location: Utah, United States, 41.47 latitude, -112.27 longitude.
Elevation: 1,284 m (4,213 ft).
Period of record: 1937 to 1984, 48 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 Bear River Refuge. 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 Bear River Refuge, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
11.7 C (53.1 F)
-32.2 C (-26.0 F)
n/a
n/a
Feb
18.9 C (66.0 F)
-29.4 C (-20.9 F)
n/a
n/a
Mar
23.9 C (75.0 F)
-21.7 C (-7.1 F)
n/a
n/a
Apr
28.9 C (84.0 F)
-7.2 C (19.0 F)
n/a
n/a
May
33.9 C (93.0 F)
-3.3 C (26.1 F)
n/a
n/a
Jun
40.6 C (105.1 F)
1.7 C (35.1 F)
n/a
n/a
Jul
40.0 C (104.0 F)
5.0 C (41.0 F)
n/a
n/a
Aug
39.4 C (102.9 F)
0.6 C (33.1 F)
n/a
n/a
Sep
36.1 C (97.0 F)
-1.1 C (30.0 F)
n/a
n/a
Oct
32.2 C (90.0 F)
-7.8 C (18.0 F)
n/a
n/a
Nov
21.1 C (70.0 F)
-19.4 C (-2.9 F)
n/a
n/a
Dec
15.6 C (60.1 F)
-24.4 C (-11.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Bear River Refuge still stand. 1943 holds the most, with 56.
Standing records at Bear River Refuge by the year they were set
Year set
Standing records
1937
17
1938
50
1939
43
1940
53
1941
21
1942
47
1943
56
1944
12
1945
37
1946
36
1947
34
1948
26
1949
34
1950
29
1951
15
1952
31
1953
42
1954
33
1955
44
1956
31
1957
33
1958
39
1959
34
1960
40
1961
30
1962
23
1963
25
1964
55
1965
27
1966
36
1967
25
1968
11
1969
22
1970
25
1971
36
1972
34
1973
19
1974
13
1975
33
1976
14
1977
25
1978
37
1979
32
1980
25
1981
16
1982
27
1983
30
1984
7
All-Time Record Progression
4 new records
4 all-time records were set at Bear River Refuge between 1 February 1979 and 26 September 1982. Each dot is a new record.
When Bear River Refuge set new all-time records
Date
Kind
Detail
1979-02-01
Record snow depth
Record snow depth 45.7 cm (18.0 in)
1979-02-02
Record snow depth
Record snow depth 50.8 cm (20.0 in)
1979-02-04
Record snow depth
Record snow depth 55.9 cm (22.0 in)
1982-09-26
Record daily precipitation
Record daily precipitation 75.9 mm (3.0 in)
Wettest Day of Each Month
Sep: 75.9 mm (3.0 in)
The wettest day on record for each calendar month at Bear River Refuge. The most was 75.9 mm (3.0 in) on 26 September 1982.
Record daily precipitation for each month at Bear River Refuge
Month
Record daily precipitation (mm)
Date
Jan
25.1 mm (1.0 in)
12 January 1980
Feb
29.2 mm (1.1 in)
9 February 1976
Mar
39.1 mm (1.5 in)
13 March 1946
Apr
35.6 mm (1.4 in)
30 April 1980
May
37.3 mm (1.5 in)
21 May 1962
Jun
55.4 mm (2.2 in)
7 June 1964
Jul
23.6 mm (0.9 in)
23 July 1979
Aug
36.3 mm (1.4 in)
18 August 1977
Sep
75.9 mm (3.0 in)
26 September 1982
Oct
36.8 mm (1.4 in)
19 October 1943
Nov
28.7 mm (1.1 in)
10 November 1949
Dec
38.1 mm (1.5 in)
9 December 1982
Period of Record Coverage
1937 to 1984
Complete yearUnder 90 percent of days
48 years of record at Bear River Refuge, 1937 to 1984. 10 years have data for under 90 percent of days and are left out of rankings: 1937, 1938, 1940, 1948, 1950, 1956, 1957, 1968 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 35 complete years at Bear River Refuge, 1938 to 1983. Blue stripes are years cooler than the station's own mean of 10.3 C (50.5 F); red stripes are warmer. The coolest year was 1955, at 9.0 C (48.2 F), and the warmest was 1943, at 11.7 C (53.0 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Bear River Refuge as warming stripes, 1938 to 1983
Year
Annual mean temperature
Difference from the station mean
1938
11.4 C
+1.13 C
1939
10.6 C
+0.31 C
1941
10.8 C
+0.51 C
1942
9.1 C
-1.17 C
1943
11.7 C
+1.41 C
1944
9.6 C
-0.65 C
1945
10.4 C
+0.18 C
1946
10.7 C
+0.45 C
1947
9.5 C
-0.76 C
1949
9.3 C
-0.95 C
1951
9.7 C
-0.55 C
1952
9.7 C
-0.60 C
1953
11.5 C
+1.23 C
1954
10.9 C
+0.69 C
1955
9.0 C
-1.25 C
1956
10.7 C
+0.43 C
1958
11.6 C
+1.31 C
1959
10.6 C
+0.38 C
1960
10.3 C
+0.04 C
1961
10.1 C
-0.11 C
1963
10.2 C
-0.02 C
1965
10.0 C
-0.27 C
1967
10.6 C
+0.33 C
1968
9.8 C
-0.47 C
1971
9.9 C
-0.38 C
1972
10.3 C
+0.09 C
1974
10.5 C
+0.25 C
1975
9.0 C
-1.22 C
1976
9.5 C
-0.75 C
1977
10.6 C
+0.32 C
1978
9.7 C
-0.60 C
1980
10.6 C
+0.33 C
1981
11.4 C
+1.15 C
1982
9.3 C
-0.98 C
1983
10.5 C
+0.20 C
The fitted trend in annual mean temperature here over 1938 to 1983 is -0.1 C (-0.3 to 0.1) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.5 to 0.2) per decade. The slope is a straight line fitted to 35 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Bear River Refuge
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.1 C (-0.3 to 0.1) per decade
-0.1 F (-0.5 to 0.2) per decade
1938 to 1983
35
Not clearly different from zero
Mean daily maximum
-0.1 C (-0.3 to 0.1) per decade
-0.1 F (-0.5 to 0.3) per decade
1938 to 1983
35
Not clearly different from zero
Mean daily minimum
-0.1 C (-0.3 to 0.2) per decade
-0.1 F (-0.5 to 0.3) per decade
1938 to 1983
35
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
1937 to 1984
Yearly extremes at Bear River Refuge: 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)
1940
37.2 C (99.0 F)
48
Coldest night (TNn)
-32.2 C (-26.0 F)
1949
-21.7 C (-7.1 F)
48
Wettest day (Rx1day)
75.9 mm (3.0 in)
1982
28.1 mm (1.1 in)
48
Wettest five days (Rx5day)
148.3 mm (5.8 in)
1982
45.5 mm (1.8 in)
48
Longest dry spell (CDD)
91 days
1952
41 days
48
Hottest day (TXx)
The hottest day of the year at Bear River Refuge, 1937 to 1984. The record is 40.6 C (105.1 F) in 1940, marked on the chart; the median year is 37.2 C (99.0 F).
Hottest day (TXx) at Bear River Refuge by year
Year
Hottest day (TXx)
1937
36.1 C (97.0 F)
1938
38.3 C (100.9 F)
1939
38.9 C (102.0 F)
1940
40.6 C (105.1 F)
1941
37.8 C (100.0 F)
1942
38.9 C (102.0 F)
1943
37.8 C (100.0 F)
1944
36.1 C (97.0 F)
1945
37.2 C (99.0 F)
1946
37.2 C (99.0 F)
1947
35.0 C (95.0 F)
1948
36.7 C (98.1 F)
1949
38.3 C (100.9 F)
1950
36.1 C (97.0 F)
1951
37.8 C (100.0 F)
1952
35.6 C (96.1 F)
1953
37.8 C (100.0 F)
1954
38.9 C (102.0 F)
1955
38.9 C (102.0 F)
1956
37.8 C (100.0 F)
1957
36.1 C (97.0 F)
1958
37.8 C (100.0 F)
1959
38.3 C (100.9 F)
1960
40.0 C (104.0 F)
1961
37.8 C (100.0 F)
1962
37.8 C (100.0 F)
1963
36.7 C (98.1 F)
1964
36.7 C (98.1 F)
1965
36.1 C (97.0 F)
1966
38.9 C (102.0 F)
1967
37.2 C (99.0 F)
1968
37.2 C (99.0 F)
1969
37.2 C (99.0 F)
1970
36.1 C (97.0 F)
1971
37.2 C (99.0 F)
1972
36.7 C (98.1 F)
1973
38.9 C (102.0 F)
1974
38.3 C (100.9 F)
1975
35.6 C (96.1 F)
1976
36.7 C (98.1 F)
1977
36.1 C (97.0 F)
1978
37.8 C (100.0 F)
1979
37.8 C (100.0 F)
1980
37.2 C (99.0 F)
1981
36.7 C (98.1 F)
1982
36.7 C (98.1 F)
1983
36.1 C (97.0 F)
1984
5.6 C (42.1 F)
Coldest night (TNn)
The coldest night of the year at Bear River Refuge, 1937 to 1984. The record is -32.2 C (-26.0 F) in 1949, marked on the chart; the median year is -21.7 C (-7.1 F).
Coldest night (TNn) at Bear River Refuge by year
Year
Coldest night (TNn)
1937
-11.7 C (10.9 F)
1938
-10.6 C (12.9 F)
1939
-22.2 C (-8.0 F)
1940
-17.8 C (0.0 F)
1941
-12.8 C (9.0 F)
1942
-30.6 C (-23.1 F)
1943
-16.7 C (1.9 F)
1944
-27.2 C (-17.0 F)
1945
-17.2 C (1.0 F)
1946
-16.1 C (3.0 F)
1947
-23.9 C (-11.0 F)
1948
-19.4 C (-2.9 F)
1949
-32.2 C (-26.0 F)
1950
-26.7 C (-16.1 F)
1951
-24.4 C (-11.9 F)
1952
-24.4 C (-11.9 F)
1953
-13.9 C (7.0 F)
1954
-13.9 C (7.0 F)
1955
-24.4 C (-11.9 F)
1956
-20.6 C (-5.1 F)
1957
-21.1 C (-6.0 F)
1958
-15.0 C (5.0 F)
1959
-17.2 C (1.0 F)
1960
-21.1 C (-6.0 F)
1961
-22.2 C (-8.0 F)
1962
-29.4 C (-20.9 F)
1963
-23.3 C (-9.9 F)
1964
-27.2 C (-17.0 F)
1965
-15.6 C (3.9 F)
1966
-21.7 C (-7.1 F)
1967
-22.2 C (-8.0 F)
1968
-22.2 C (-8.0 F)
1969
-16.7 C (1.9 F)
1970
-18.9 C (-2.0 F)
1971
-20.6 C (-5.1 F)
1972
-24.4 C (-11.9 F)
1973
-23.3 C (-9.9 F)
1974
-24.4 C (-11.9 F)
1975
-23.9 C (-11.0 F)
1976
-17.2 C (1.0 F)
1977
-18.9 C (-2.0 F)
1978
-16.7 C (1.9 F)
1979
-28.9 C (-20.0 F)
1980
-23.3 C (-9.9 F)
1981
-13.3 C (8.1 F)
1982
-29.4 C (-20.9 F)
1983
-21.7 C (-7.1 F)
1984
-29.4 C (-20.9 F)
Wettest day (Rx1day)
The wettest day of the year at Bear River Refuge, 1937 to 1984. The record is 75.9 mm (3.0 in) in 1982, marked on the chart; the median year is 28.1 mm (1.1 in).
Wettest day (Rx1day) at Bear River Refuge by year
Year
Wettest day (Rx1day)
1937
35.6 mm (1.4 in)
1938
24.4 mm (1.0 in)
1939
24.4 mm (1.0 in)
1940
29.5 mm (1.2 in)
1941
31.8 mm (1.3 in)
1942
21.8 mm (0.9 in)
1943
36.8 mm (1.4 in)
1944
33.0 mm (1.3 in)
1945
30.2 mm (1.2 in)
1946
39.1 mm (1.5 in)
1947
39.6 mm (1.6 in)
1948
21.3 mm (0.8 in)
1949
28.7 mm (1.1 in)
1950
19.8 mm (0.8 in)
1951
20.1 mm (0.8 in)
1952
23.6 mm (0.9 in)
1953
24.4 mm (1.0 in)
1954
57.4 mm (2.3 in)
1955
15.7 mm (0.6 in)
1956
24.4 mm (1.0 in)
1957
29.2 mm (1.1 in)
1958
17.0 mm (0.7 in)
1959
27.7 mm (1.1 in)
1960
16.5 mm (0.6 in)
1961
33.8 mm (1.3 in)
1962
37.3 mm (1.5 in)
1963
23.6 mm (0.9 in)
1964
55.4 mm (2.2 in)
1965
28.2 mm (1.1 in)
1966
32.8 mm (1.3 in)
1967
24.6 mm (1.0 in)
1968
27.9 mm (1.1 in)
1969
21.8 mm (0.9 in)
1970
28.2 mm (1.1 in)
1971
25.1 mm (1.0 in)
1972
34.8 mm (1.4 in)
1973
23.9 mm (0.9 in)
1974
19.6 mm (0.8 in)
1975
27.9 mm (1.1 in)
1976
29.2 mm (1.1 in)
1977
36.3 mm (1.4 in)
1978
27.4 mm (1.1 in)
1979
23.9 mm (0.9 in)
1980
35.6 mm (1.4 in)
1981
31.2 mm (1.2 in)
1982
75.9 mm (3.0 in)
1983
33.0 mm (1.3 in)
1984
6.9 mm (0.27 in)
Wettest five days (Rx5day)
The wettest five days of the year at Bear River Refuge, 1937 to 1984. The record is 148.3 mm (5.8 in) in 1982, marked on the chart; the median year is 45.5 mm (1.8 in).
Wettest five days (Rx5day) at Bear River Refuge by year
Year
Wettest five days (Rx5day)
1937
37.6 mm (1.5 in)
1938
46.8 mm (1.8 in)
1939
27.4 mm (1.1 in)
1940
35.0 mm (1.4 in)
1941
35.3 mm (1.4 in)
1942
30.8 mm (1.2 in)
1943
54.6 mm (2.1 in)
1944
60.1 mm (2.4 in)
1945
85.1 mm (3.4 in)
1946
51.6 mm (2.0 in)
1947
58.7 mm (2.3 in)
1948
32.0 mm (1.3 in)
1949
56.9 mm (2.2 in)
1950
28.8 mm (1.1 in)
1951
43.3 mm (1.7 in)
1952
27.7 mm (1.1 in)
1953
57.7 mm (2.3 in)
1954
58.9 mm (2.3 in)
1955
33.3 mm (1.3 in)
1956
27.6 mm (1.1 in)
1957
40.2 mm (1.6 in)
1958
28.4 mm (1.1 in)
1959
32.0 mm (1.3 in)
1960
34.9 mm (1.4 in)
1961
49.5 mm (1.9 in)
1962
48.7 mm (1.9 in)
1963
37.6 mm (1.5 in)
1964
60.8 mm (2.4 in)
1965
46.8 mm (1.8 in)
1966
37.0 mm (1.5 in)
1967
55.1 mm (2.2 in)
1968
46.0 mm (1.8 in)
1969
36.3 mm (1.4 in)
1970
49.1 mm (1.9 in)
1971
35.6 mm (1.4 in)
1972
41.5 mm (1.6 in)
1973
29.5 mm (1.2 in)
1974
49.4 mm (1.9 in)
1975
46.2 mm (1.8 in)
1976
44.9 mm (1.8 in)
1977
55.1 mm (2.2 in)
1978
40.7 mm (1.6 in)
1979
47.0 mm (1.9 in)
1980
54.6 mm (2.1 in)
1981
71.4 mm (2.8 in)
1982
148.3 mm (5.8 in)
1983
85.1 mm (3.4 in)
1984
16.0 mm (0.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Bear River Refuge, 1937 to 1984. The record is 91 days in 1952, marked on the chart; the median year is 41 days.
Longest dry spell (CDD) at Bear River Refuge by year
Year
Longest dry spell (CDD)
1937
22 days
1938
35 days
1939
40 days
1940
55 days
1941
32 days
1942
76 days
1943
51 days
1944
59 days
1945
27 days
1946
38 days
1947
43 days
1948
43 days
1949
48 days
1950
31 days
1951
68 days
1952
91 days
1953
81 days
1954
28 days
1955
25 days
1956
73 days
1957
66 days
1958
76 days
1959
75 days
1960
65 days
1961
33 days
1962
40 days
1963
33 days
1964
74 days
1965
43 days
1966
41 days
1967
51 days
1968
29 days
1969
41 days
1970
28 days
1971
51 days
1972
33 days
1973
28 days
1974
60 days
1975
40 days
1976
41 days
1977
36 days
1978
55 days
1979
36 days
1980
36 days
1981
38 days
1982
27 days
1983
18 days
1984
16 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
35 years with a frost
Across 35 years with a frost, the median last spring frost at Bear River Refuge falls on 24 April and the median first autumn frost on 15 October, which leaves a median of 175 days between them.
Fitted over all years, the growing season changes by -5.7 days per decade at this station.
Frost dates and growing season at Bear River Refuge
Measure
Median, all years
Earliest period
Recent period (1944 to 1983)
Recent against earliest
Fitted trend
Last spring frost
24 April
n/a
25 April
n/a
+3.0 days per decade
First autumn frost
15 October
n/a
15 October
n/a
-2.7 days per decade
Growing days
175 days
n/a
175 days
n/a
-5.7 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
43 years, 1940 to 1983
A day with at least 27.3 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 70.0 mm (2.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Bear River Refuge: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
27.3 mm (1.1 in)
5 years
36.0 mm (1.4 in)
10 years
42.7 mm (1.7 in)
25 years
52.4 mm (2.1 in)
50 years
60.7 mm (2.4 in)
Longer than the 43 years of record
100 years
70.0 mm (2.8 in)
Longer than the 43 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, 43 years of values from 1940 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: 75.9 mm (3.0 in) in 1982; 57.4 mm (2.3 in) in 1954; 55.4 mm (2.2 in) in 1964.
Download the Data
Data for Bear River Refuge standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bear River Refuge 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.