Record envelope, standing records and threshold days for Pleasant Valley (USC00246576), Montana, United States, with 67 years of record.
Key Facts for Pleasant Valley
Pleasant Valley (USC00246576) is a weather station in Montana, United States at 48.13 latitude and -114.92 longitude, 1,098 m (3,602 ft) above sea level.
The station reports from 1906 to 1972, 67 years of record.
1,464 records set at Pleasant Valley still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Pleasant Valley set a daily record low maximum temperature of 5.0 C (41.0 F) on 13 October 1972.
About the Station
Location: Montana, United States, 48.13 latitude, -114.92 longitude.
Elevation: 1,098 m (3,602 ft).
Period of record: 1906 to 1972, 67 years.
Eligible elements: tmax, tmin, prcp, snow.
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 Pleasant 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 Pleasant Valley, 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)
-45.0 C (-49.0 F)
n/a
n/a
Feb
17.8 C (64.0 F)
-44.4 C (-47.9 F)
n/a
n/a
Mar
21.1 C (70.0 F)
-35.6 C (-32.1 F)
n/a
n/a
Apr
30.0 C (86.0 F)
-25.6 C (-14.1 F)
n/a
n/a
May
31.7 C (89.1 F)
-12.8 C (9.0 F)
n/a
n/a
Jun
36.1 C (97.0 F)
-5.0 C (23.0 F)
n/a
n/a
Jul
36.7 C (98.1 F)
-5.0 C (23.0 F)
n/a
n/a
Aug
38.9 C (102.0 F)
-9.4 C (15.1 F)
n/a
n/a
Sep
35.6 C (96.1 F)
-19.4 C (-2.9 F)
n/a
n/a
Oct
27.8 C (82.0 F)
-18.9 C (-2.0 F)
n/a
n/a
Nov
21.1 C (70.0 F)
-35.6 C (-32.1 F)
n/a
n/a
Dec
12.8 C (55.0 F)
-46.1 C (-51.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Pleasant Valley still stand. 1910 holds the most, with 56.
Standing records at Pleasant Valley by the year they were set
Year set
Standing records
1906
20
1907
7
1908
28
1909
21
1910
56
1911
21
1912
31
1913
39
1914
30
1923
15
1924
52
1925
18
1926
11
1927
17
1928
25
1929
25
1930
36
1931
44
1932
34
1933
28
1934
24
1935
34
1936
53
1937
28
1938
16
1939
27
1940
21
1941
15
1942
11
1943
24
1944
17
1945
22
1946
12
1947
12
1948
15
1949
19
1950
32
1951
23
1952
10
1953
26
1954
28
1955
41
1956
17
1957
16
1958
13
1959
21
1960
27
1961
26
1962
25
1963
28
1964
22
1965
26
1966
23
1967
31
1968
33
1969
21
1970
23
1971
25
1972
19
All-Time Record Progression
4 new records
4 all-time records were set at Pleasant Valley between 22 August 1947 and 30 December 1968. Each dot is a new record.
When Pleasant Valley set new all-time records
Date
Kind
Detail
1947-08-22
Record daily precipitation
Record daily precipitation 45.7 mm (1.8 in)
1953-01-09
Record daily precipitation
Record daily precipitation 57.2 mm (2.3 in)
1961-08-04
Record high maximum temperature
Record high maximum temperature 38.9 C (102.0 F)
1968-12-30
Record low maximum temperature
Record low maximum temperature -25.0 C (-13.0 F)
Wettest Day of Each Month
Jan: 57.2 mm (2.3 in)
The wettest day on record for each calendar month at Pleasant Valley. The most was 57.2 mm (2.3 in) on 9 January 1953.
Record daily precipitation for each month at Pleasant Valley
Month
Record daily precipitation (mm)
Date
Jan
57.2 mm (2.3 in)
9 January 1953
Feb
34.3 mm (1.4 in)
17 February 1949
Mar
31.5 mm (1.2 in)
25 March 1925
Apr
24.6 mm (1.0 in)
5 April 1914
May
31.0 mm (1.2 in)
19 May 1957
Jun
39.9 mm (1.6 in)
11 June 1952
Jul
55.9 mm (2.2 in)
30 July 1958
Aug
45.7 mm (1.8 in)
22 August 1947
Sep
38.1 mm (1.5 in)
3 September 1911
Oct
30.5 mm (1.2 in)
14 October 1908
Nov
36.3 mm (1.4 in)
12 November 1930
Dec
39.6 mm (1.6 in)
22 December 1964
Period of Record Coverage
1906 to 1972
Complete yearUnder 90 percent of days
59 years of record at Pleasant Valley, 1906 to 1972. 6 years have data for under 90 percent of days and are left out of rankings: 1906, 1907, 1914, 1923, 1926, 1972.
Cooler than the station meanWarmer than the station mean
One stripe for each of 51 complete years at Pleasant Valley, 1908 to 1971. Blue stripes are years cooler than the station's own mean of 4.5 C (40.1 F); red stripes are warmer. The coolest year was 1913, at 2.9 C (37.2 F), and the warmest was 1934, at 6.4 C (43.5 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Pleasant Valley as warming stripes, 1908 to 1971
Year
Annual mean temperature
Difference from the station mean
1908
4.4 C
-0.12 C
1910
5.1 C
+0.59 C
1911
3.3 C
-1.24 C
1912
3.7 C
-0.83 C
1913
2.9 C
-1.62 C
1924
4.3 C
-0.19 C
1925
5.9 C
+1.34 C
1927
4.0 C
-0.55 C
1928
4.6 C
+0.11 C
1929
3.2 C
-1.28 C
1930
3.8 C
-0.68 C
1931
4.7 C
+0.14 C
1932
3.9 C
-0.61 C
1933
4.6 C
+0.06 C
1934
6.4 C
+1.89 C
1935
3.7 C
-0.81 C
1936
4.1 C
-0.44 C
1937
3.7 C
-0.83 C
1938
5.2 C
+0.66 C
1939
5.1 C
+0.61 C
1940
5.7 C
+1.19 C
1941
5.6 C
+1.13 C
1942
4.4 C
-0.15 C
1943
3.6 C
-0.89 C
1944
4.5 C
-0.06 C
1945
4.8 C
+0.27 C
1946
4.4 C
-0.16 C
1947
4.7 C
+0.17 C
1948
3.5 C
-1.05 C
1949
3.6 C
-0.94 C
1950
3.4 C
-1.08 C
1951
3.6 C
-0.87 C
1952
4.9 C
+0.40 C
1953
6.0 C
+1.45 C
1954
4.7 C
+0.14 C
1955
3.2 C
-1.34 C
1956
4.6 C
+0.05 C
1957
4.5 C
+0.03 C
1958
6.0 C
+1.47 C
1959
4.3 C
-0.24 C
1960
4.5 C
-0.01 C
1961
5.5 C
+0.99 C
1962
4.8 C
+0.33 C
1963
5.3 C
+0.81 C
1964
4.0 C
-0.52 C
1965
4.9 C
+0.39 C
1966
5.4 C
+0.86 C
1967
5.8 C
+1.27 C
1968
4.8 C
+0.32 C
1969
4.4 C
-0.11 C
1971
4.7 C
+0.18 C
The annual mean temperature here has risen by 0.14 C (0.00 to 0.27) per decade over 1908 to 1971. In Fahrenheit: 0.25 F (0.01 to 0.49) 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 Pleasant Valley
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.14 C (0.00 to 0.27) per decade
0.25 F (0.01 to 0.49) per decade
1908 to 1971
51
Rise
Mean daily maximum
0.05 C (-0.11 to 0.20) per decade
0.1 F (-0.2 to 0.4) per decade
1908 to 1971
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 0.7) per decade
1908 to 1971
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
1906 to 1972
Yearly extremes at Pleasant Valley: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.9 C (102.0 F)
1961
34.4 C (93.9 F)
59
Coldest night (TNn)
-46.1 C (-51.0 F)
1924
-35.6 C (-32.1 F)
59
Wettest day (Rx1day)
57.2 mm (2.3 in)
1953
27.9 mm (1.1 in)
59
Wettest five days (Rx5day)
110.6 mm (4.4 in)
1953
48.1 mm (1.9 in)
59
Longest dry spell (CDD)
61 days
1934
28 days
59
Hottest day (TXx)
The hottest day of the year at Pleasant Valley, 1906 to 1972. The record is 38.9 C (102.0 F) in 1961, marked on the chart; the median year is 34.4 C (93.9 F).
Hottest day (TXx) at Pleasant Valley by year
Year
Hottest day (TXx)
1906
33.3 C (91.9 F)
1907
30.6 C (87.1 F)
1908
35.0 C (95.0 F)
1909
37.2 C (99.0 F)
1910
34.4 C (93.9 F)
1911
31.7 C (89.1 F)
1912
34.4 C (93.9 F)
1913
33.3 C (91.9 F)
1914
36.7 C (98.1 F)
1923
33.9 C (93.0 F)
1924
36.7 C (98.1 F)
1925
36.1 C (97.0 F)
1926
36.1 C (97.0 F)
1927
32.2 C (90.0 F)
1928
35.6 C (96.1 F)
1929
36.1 C (97.0 F)
1930
34.4 C (93.9 F)
1931
35.6 C (96.1 F)
1932
33.3 C (91.9 F)
1933
34.4 C (93.9 F)
1934
36.7 C (98.1 F)
1935
32.8 C (91.0 F)
1936
35.0 C (95.0 F)
1937
33.3 C (91.9 F)
1938
33.9 C (93.0 F)
1939
35.0 C (95.0 F)
1940
35.0 C (95.0 F)
1941
35.6 C (96.1 F)
1942
32.8 C (91.0 F)
1943
31.1 C (88.0 F)
1944
32.2 C (90.0 F)
1945
34.4 C (93.9 F)
1946
32.8 C (91.0 F)
1947
31.7 C (89.1 F)
1948
29.4 C (84.9 F)
1949
32.2 C (90.0 F)
1950
32.2 C (90.0 F)
1951
33.3 C (91.9 F)
1952
35.0 C (95.0 F)
1953
36.1 C (97.0 F)
1954
32.2 C (90.0 F)
1955
35.0 C (95.0 F)
1956
33.9 C (93.0 F)
1957
31.7 C (89.1 F)
1958
32.8 C (91.0 F)
1959
35.0 C (95.0 F)
1960
36.7 C (98.1 F)
1961
38.9 C (102.0 F)
1962
34.4 C (93.9 F)
1963
33.9 C (93.0 F)
1964
34.4 C (93.9 F)
1965
33.9 C (93.0 F)
1966
35.0 C (95.0 F)
1967
36.7 C (98.1 F)
1968
34.4 C (93.9 F)
1969
36.7 C (98.1 F)
1970
33.9 C (93.0 F)
1971
35.0 C (95.0 F)
1972
34.4 C (93.9 F)
Coldest night (TNn)
The coldest night of the year at Pleasant Valley, 1906 to 1972. The record is -46.1 C (-51.0 F) in 1924, marked on the chart; the median year is -35.6 C (-32.1 F).
Coldest night (TNn) at Pleasant Valley by year
Year
Coldest night (TNn)
1906
-19.4 C (-2.9 F)
1907
-22.8 C (-9.0 F)
1908
-41.1 C (-42.0 F)
1909
-26.7 C (-16.1 F)
1910
-42.8 C (-45.0 F)
1911
-36.1 C (-33.0 F)
1912
-36.7 C (-34.1 F)
1913
-40.0 C (-40.0 F)
1914
-44.4 C (-47.9 F)
1923
-38.9 C (-38.0 F)
1924
-46.1 C (-51.0 F)
1925
-22.8 C (-9.0 F)
1926
-29.4 C (-20.9 F)
1927
-41.7 C (-43.1 F)
1928
-30.6 C (-23.1 F)
1929
-40.0 C (-40.0 F)
1930
-40.6 C (-41.1 F)
1931
-30.0 C (-22.0 F)
1932
-33.9 C (-29.0 F)
1933
-44.4 C (-47.9 F)
1934
-21.1 C (-6.0 F)
1935
-41.7 C (-43.1 F)
1936
-42.8 C (-45.0 F)
1937
-42.8 C (-45.0 F)
1938
-26.1 C (-15.0 F)
1939
-37.2 C (-35.0 F)
1940
-29.4 C (-20.9 F)
1941
-24.4 C (-11.9 F)
1942
-35.0 C (-31.0 F)
1943
-42.2 C (-44.0 F)
1944
-29.4 C (-20.9 F)
1945
-35.0 C (-31.0 F)
1946
-31.7 C (-25.1 F)
1947
-31.1 C (-24.0 F)
1948
-33.3 C (-27.9 F)
1949
-40.6 C (-41.1 F)
1950
-41.7 C (-43.1 F)
1951
-36.1 C (-33.0 F)
1952
-32.8 C (-27.0 F)
1953
-23.3 C (-9.9 F)
1954
-40.0 C (-40.0 F)
1955
-35.0 C (-31.0 F)
1956
-38.3 C (-36.9 F)
1957
-40.0 C (-40.0 F)
1958
-26.7 C (-16.1 F)
1959
-35.6 C (-32.1 F)
1960
-35.6 C (-32.1 F)
1961
-35.6 C (-32.1 F)
1962
-38.3 C (-36.9 F)
1963
-36.7 C (-34.1 F)
1964
-40.0 C (-40.0 F)
1965
-28.3 C (-18.9 F)
1966
-29.4 C (-20.9 F)
1967
-23.9 C (-11.0 F)
1968
-45.0 C (-49.0 F)
1969
-28.9 C (-20.0 F)
1970
-31.1 C (-24.0 F)
1971
-31.1 C (-24.0 F)
1972
-35.6 C (-32.1 F)
Wettest day (Rx1day)
The wettest day of the year at Pleasant Valley, 1906 to 1972. The record is 57.2 mm (2.3 in) in 1953, marked on the chart; the median year is 27.9 mm (1.1 in).
Wettest day (Rx1day) at Pleasant Valley by year
Year
Wettest day (Rx1day)
1906
27.9 mm (1.1 in)
1907
23.1 mm (0.9 in)
1908
36.8 mm (1.4 in)
1909
22.6 mm (0.9 in)
1910
20.8 mm (0.8 in)
1911
38.1 mm (1.5 in)
1912
19.1 mm (0.8 in)
1913
15.2 mm (0.6 in)
1914
25.4 mm (1.0 in)
1923
29.2 mm (1.1 in)
1924
27.4 mm (1.1 in)
1925
31.5 mm (1.2 in)
1926
36.8 mm (1.4 in)
1927
20.3 mm (0.8 in)
1928
21.1 mm (0.8 in)
1929
33.0 mm (1.3 in)
1930
36.3 mm (1.4 in)
1931
20.8 mm (0.8 in)
1932
23.1 mm (0.9 in)
1933
35.6 mm (1.4 in)
1934
28.4 mm (1.1 in)
1935
16.5 mm (0.6 in)
1936
31.8 mm (1.3 in)
1937
15.2 mm (0.6 in)
1938
25.4 mm (1.0 in)
1939
12.2 mm (0.5 in)
1940
20.1 mm (0.8 in)
1941
35.6 mm (1.4 in)
1942
32.0 mm (1.3 in)
1943
28.7 mm (1.1 in)
1944
14.7 mm (0.6 in)
1945
19.6 mm (0.8 in)
1946
36.3 mm (1.4 in)
1947
45.7 mm (1.8 in)
1948
21.1 mm (0.8 in)
1949
34.3 mm (1.4 in)
1950
16.0 mm (0.6 in)
1951
25.7 mm (1.0 in)
1952
39.9 mm (1.6 in)
1953
57.2 mm (2.3 in)
1954
33.5 mm (1.3 in)
1955
31.0 mm (1.2 in)
1956
19.3 mm (0.8 in)
1957
31.0 mm (1.2 in)
1958
55.9 mm (2.2 in)
1959
34.5 mm (1.4 in)
1960
33.0 mm (1.3 in)
1961
24.1 mm (0.9 in)
1962
19.1 mm (0.8 in)
1963
25.4 mm (1.0 in)
1964
39.6 mm (1.6 in)
1965
18.8 mm (0.7 in)
1966
36.8 mm (1.4 in)
1967
24.1 mm (0.9 in)
1968
29.0 mm (1.1 in)
1969
32.3 mm (1.3 in)
1970
27.9 mm (1.1 in)
1971
24.9 mm (1.0 in)
1972
22.1 mm (0.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Pleasant Valley, 1906 to 1972. The record is 110.6 mm (4.4 in) in 1953, marked on the chart; the median year is 48.1 mm (1.9 in).
Wettest five days (Rx5day) at Pleasant Valley by year
Year
Wettest five days (Rx5day)
1906
30.5 mm (1.2 in)
1907
37.3 mm (1.5 in)
1908
46.8 mm (1.8 in)
1909
50.9 mm (2.0 in)
1910
41.9 mm (1.6 in)
1911
66.3 mm (2.6 in)
1912
39.6 mm (1.6 in)
1913
30.5 mm (1.2 in)
1914
45.5 mm (1.8 in)
1923
62.7 mm (2.5 in)
1924
34.6 mm (1.4 in)
1925
51.5 mm (2.0 in)
1926
52.1 mm (2.1 in)
1927
41.7 mm (1.6 in)
1928
70.9 mm (2.8 in)
1929
63.0 mm (2.5 in)
1930
45.9 mm (1.8 in)
1931
35.1 mm (1.4 in)
1932
36.9 mm (1.5 in)
1933
92.2 mm (3.6 in)
1934
70.3 mm (2.8 in)
1935
37.4 mm (1.5 in)
1936
60.7 mm (2.4 in)
1937
45.7 mm (1.8 in)
1938
44.2 mm (1.7 in)
1939
30.0 mm (1.2 in)
1940
38.5 mm (1.5 in)
1941
60.0 mm (2.4 in)
1942
51.8 mm (2.0 in)
1943
48.0 mm (1.9 in)
1944
31.2 mm (1.2 in)
1945
33.1 mm (1.3 in)
1946
79.5 mm (3.1 in)
1947
53.9 mm (2.1 in)
1948
56.5 mm (2.2 in)
1949
58.2 mm (2.3 in)
1950
52.3 mm (2.1 in)
1951
38.6 mm (1.5 in)
1952
64.1 mm (2.5 in)
1953
110.6 mm (4.4 in)
1954
48.1 mm (1.9 in)
1955
55.1 mm (2.2 in)
1956
36.6 mm (1.4 in)
1957
53.8 mm (2.1 in)
1958
56.7 mm (2.2 in)
1959
52.3 mm (2.1 in)
1960
48.3 mm (1.9 in)
1961
36.0 mm (1.4 in)
1962
32.9 mm (1.3 in)
1963
48.0 mm (1.9 in)
1964
86.8 mm (3.4 in)
1965
42.2 mm (1.7 in)
1966
51.6 mm (2.0 in)
1967
35.0 mm (1.4 in)
1968
42.7 mm (1.7 in)
1969
72.0 mm (2.8 in)
1970
43.9 mm (1.7 in)
1971
49.6 mm (2.0 in)
1972
59.4 mm (2.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Pleasant Valley, 1906 to 1972. The record is 61 days in 1934, marked on the chart; the median year is 28 days.
Longest dry spell (CDD) at Pleasant Valley by year
Year
Longest dry spell (CDD)
1906
30 days
1907
54 days
1908
31 days
1909
28 days
1910
32 days
1911
26 days
1912
18 days
1913
24 days
1914
33 days
1923
45 days
1924
27 days
1925
33 days
1926
41 days
1927
15 days
1928
35 days
1929
20 days
1930
27 days
1931
39 days
1932
37 days
1933
24 days
1934
61 days
1935
25 days
1936
29 days
1937
29 days
1938
36 days
1939
42 days
1940
29 days
1941
16 days
1942
23 days
1943
24 days
1944
26 days
1945
39 days
1946
23 days
1947
21 days
1948
30 days
1949
26 days
1950
22 days
1951
33 days
1952
30 days
1953
25 days
1954
23 days
1955
49 days
1956
22 days
1957
36 days
1958
28 days
1959
35 days
1960
39 days
1961
23 days
1962
21 days
1963
36 days
1964
15 days
1965
19 days
1966
22 days
1967
34 days
1968
24 days
1969
44 days
1970
28 days
1971
22 days
1972
26 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 Pleasant Valley falls on 25 June and the median first autumn frost on 11 July, which leaves a median of 20 days between them.
Fitted over all years, the growing season changes by -0.8 days per decade at this station.
Frost dates and growing season at Pleasant Valley
Measure
Median, all years
Earliest period
Recent period (1941 to 1971)
Recent against earliest
Fitted trend
Last spring frost
25 June
n/a
26 June
n/a
+1.3 days per decade
First autumn frost
11 July
n/a
14 July
n/a
+0.5 days per decade
Growing days
20 days
n/a
20 days
n/a
-0.8 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
51 years, 1909 to 1971
A day with at least 27.1 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 55.8 mm (2.2 in) of rain is expected about once in 100 years.
Rainfall return levels at Pleasant 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
27.1 mm (1.1 in)
5 years
35.8 mm (1.4 in)
10 years
41.1 mm (1.6 in)
25 years
47.4 mm (1.9 in)
50 years
51.7 mm (2.0 in)
100 years
55.8 mm (2.2 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 1909 to 1971.
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: 57.2 mm (2.3 in) in 1953; 55.9 mm (2.2 in) in 1958; 45.7 mm (1.8 in) in 1947.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Pleasant Valley standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Pleasant 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.