Record envelope, standing records and threshold days for Drummond FAA AP (USC00242511), Montana, United States, with 37 years of record.
Key Facts for Drummond FAA AP
Drummond FAA AP (USC00242511) is a weather station in Montana, United States at 46.62 latitude and -113.20 longitude, 1,293 m (4,242 ft) above sea level.
The station reports from 1927 to 1963, 37 years of record.
1,464 records set at Drummond FAA AP still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Drummond FAA AP set a daily record low minimum temperature of -5.0 C (23.0 F) on 20 May 1963.
About the Station
Location: Montana, United States, 46.62 latitude, -113.20 longitude.
Elevation: 1,293 m (4,242 ft).
Period of record: 1927 to 1963, 37 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 Drummond FAA AP. 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 Drummond FAA AP, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
13.9 C (57.0 F)
-44.4 C (-47.9 F)
n/a
n/a
Feb
19.4 C (66.9 F)
-41.1 C (-42.0 F)
n/a
n/a
Mar
21.7 C (71.1 F)
-33.9 C (-29.0 F)
n/a
n/a
Apr
28.3 C (82.9 F)
-20.0 C (-4.0 F)
n/a
n/a
May
33.3 C (91.9 F)
-12.2 C (10.0 F)
n/a
n/a
Jun
36.1 C (97.0 F)
-5.0 C (23.0 F)
n/a
n/a
Jul
38.3 C (100.9 F)
-2.8 C (27.0 F)
n/a
n/a
Aug
38.3 C (100.9 F)
-3.9 C (25.0 F)
n/a
n/a
Sep
35.0 C (95.0 F)
-9.4 C (15.1 F)
n/a
n/a
Oct
28.3 C (82.9 F)
-18.3 C (-0.9 F)
n/a
n/a
Nov
20.0 C (68.0 F)
-40.0 C (-40.0 F)
n/a
n/a
Dec
16.1 C (61.0 F)
-36.7 C (-34.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Drummond FAA AP still stand. 1932 holds the most, with 76.
Standing records at Drummond FAA AP by the year they were set
Year set
Standing records
1927
13
1928
5
1929
56
1930
53
1931
51
1932
76
1933
53
1934
72
1935
59
1936
44
1937
9
1938
37
1939
51
1940
45
1941
38
1942
33
1943
41
1944
30
1945
33
1946
32
1947
28
1948
41
1949
40
1950
51
1951
33
1952
35
1953
57
1954
32
1955
50
1956
26
1957
29
1958
26
1959
28
1960
40
1961
42
1962
53
1963
22
Wettest Day of Each Month
Aug: 43.9 mm (1.7 in)
The wettest day on record for each calendar month at Drummond FAA AP. The most was 43.9 mm (1.7 in) on 21 August 1933.
Record daily precipitation for each month at Drummond FAA AP
Month
Record daily precipitation (mm)
Date
Jan
22.4 mm (0.9 in)
7 January 1962
Feb
29.7 mm (1.2 in)
7 February 1938
Mar
18.5 mm (0.7 in)
5 March 1932
Apr
19.3 mm (0.8 in)
23 April 1932
May
30.5 mm (1.2 in)
20 May 1957
Jun
27.7 mm (1.1 in)
2 June 1953
Jul
26.7 mm (1.1 in)
2 July 1938
Aug
43.9 mm (1.7 in)
21 August 1933
Sep
33.0 mm (1.3 in)
28 September 1940
Oct
22.9 mm (0.9 in)
5 October 1943
Nov
16.0 mm (0.6 in)
11 November 1959
Dec
13.7 mm (0.5 in)
10 December 1929
Period of Record Coverage
1927 to 1963
Complete yearUnder 90 percent of days
37 years of record at Drummond FAA AP, 1927 to 1963. 5 years have data for under 90 percent of days and are left out of rankings: 1927, 1928, 1936, 1937, 1963.
Cooler than the station meanWarmer than the station mean
One stripe for each of 32 complete years at Drummond FAA AP, 1929 to 1962. Blue stripes are years cooler than the station's own mean of 4.7 C (40.5 F); red stripes are warmer. The coolest year was 1955, at 2.6 C (36.7 F), and the warmest was 1934, at 8.2 C (46.7 F). The strongest colour marks a difference of 3.5 C (6.3 F).
Annual mean temperature at Drummond FAA AP as warming stripes, 1929 to 1962
Year
Annual mean temperature
Difference from the station mean
1929
5.0 C
+0.27 C
1930
5.3 C
+0.54 C
1931
5.9 C
+1.15 C
1932
5.3 C
+0.57 C
1933
6.2 C
+1.49 C
1934
8.2 C
+3.47 C
1935
6.0 C
+1.31 C
1938
5.2 C
+0.43 C
1939
6.1 C
+1.42 C
1940
6.0 C
+1.24 C
1941
5.7 C
+0.99 C
1942
3.9 C
-0.83 C
1943
3.5 C
-1.24 C
1944
4.2 C
-0.51 C
1945
4.8 C
+0.04 C
1946
5.3 C
+0.60 C
1947
5.3 C
+0.55 C
1948
3.6 C
-1.09 C
1949
3.5 C
-1.22 C
1950
3.2 C
-1.48 C
1951
3.1 C
-1.63 C
1952
3.6 C
-1.14 C
1953
6.0 C
+1.25 C
1954
4.5 C
-0.18 C
1955
2.6 C
-2.10 C
1956
3.9 C
-0.80 C
1957
4.1 C
-0.59 C
1958
5.4 C
+0.67 C
1959
3.8 C
-0.88 C
1960
3.8 C
-0.92 C
1961
5.0 C
+0.29 C
1962
3.1 C
-1.65 C
The annual mean temperature here has fallen by 0.7 C (0.3 to 1.1) per decade over 1929 to 1962. In Fahrenheit: 1.3 F (0.6 to 2.0) 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 Drummond FAA AP
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.7 C (-1.1 to -0.3) per decade
-1.3 F (-2.0 to -0.6) per decade
1929 to 1962
32
Fall
Mean daily maximum
-0.5 C (-0.9 to -0.2) per decade
-0.9 F (-1.6 to -0.3) per decade
1929 to 1962
32
Fall
Mean daily minimum
-0.9 C (-1.3 to -0.5) per decade
-1.6 F (-2.4 to -0.9) per decade
1929 to 1962
32
Fall
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
1927 to 1963
Yearly extremes at Drummond FAA AP: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.3 C (100.9 F)
1929
34.4 C (93.9 F)
37
Coldest night (TNn)
-44.4 C (-47.9 F)
1957
-34.4 C (-29.9 F)
37
Wettest day (Rx1day)
43.9 mm (1.7 in)
1933
19.8 mm (0.8 in)
37
Wettest five days (Rx5day)
59.4 mm (2.3 in)
1944
33.3 mm (1.3 in)
37
Longest dry spell (CDD)
64 days
1953
33 days
37
Hottest day (TXx)
The hottest day of the year at Drummond FAA AP, 1927 to 1963. The record is 38.3 C (100.9 F) in 1929, marked on the chart; the median year is 34.4 C (93.9 F).
Hottest day (TXx) at Drummond FAA AP by year
Year
Hottest day (TXx)
1927
34.4 C (93.9 F)
1928
18.9 C (66.0 F)
1929
38.3 C (100.9 F)
1930
35.6 C (96.1 F)
1931
38.3 C (100.9 F)
1932
35.6 C (96.1 F)
1933
37.8 C (100.0 F)
1934
37.2 C (99.0 F)
1935
37.8 C (100.0 F)
1936
33.3 C (91.9 F)
1937
22.8 C (73.0 F)
1938
32.8 C (91.0 F)
1939
35.6 C (96.1 F)
1940
37.2 C (99.0 F)
1941
35.0 C (95.0 F)
1942
33.9 C (93.0 F)
1943
35.6 C (96.1 F)
1944
32.8 C (91.0 F)
1945
34.4 C (93.9 F)
1946
34.4 C (93.9 F)
1947
33.9 C (93.0 F)
1948
34.4 C (93.9 F)
1949
35.6 C (96.1 F)
1950
35.0 C (95.0 F)
1951
33.3 C (91.9 F)
1952
33.9 C (93.0 F)
1953
36.1 C (97.0 F)
1954
33.9 C (93.0 F)
1955
34.4 C (93.9 F)
1956
32.8 C (91.0 F)
1957
34.4 C (93.9 F)
1958
33.3 C (91.9 F)
1959
35.6 C (96.1 F)
1960
37.8 C (100.0 F)
1961
38.3 C (100.9 F)
1962
31.1 C (88.0 F)
1963
26.7 C (80.1 F)
Coldest night (TNn)
The coldest night of the year at Drummond FAA AP, 1927 to 1963. The record is -44.4 C (-47.9 F) in 1957, marked on the chart; the median year is -34.4 C (-29.9 F).
Coldest night (TNn) at Drummond FAA AP by year
Year
Coldest night (TNn)
1927
-1.1 C (30.0 F)
1928
-27.8 C (-18.0 F)
1929
-38.3 C (-36.9 F)
1930
-37.2 C (-35.0 F)
1931
-27.2 C (-17.0 F)
1932
-36.1 C (-33.0 F)
1933
-41.1 C (-42.0 F)
1934
-23.3 C (-9.9 F)
1935
-36.1 C (-33.0 F)
1936
-40.0 C (-40.0 F)
1937
-25.0 C (-13.0 F)
1938
-33.3 C (-27.9 F)
1939
-33.3 C (-27.9 F)
1940
-34.4 C (-29.9 F)
1941
-32.8 C (-27.0 F)
1942
-40.0 C (-40.0 F)
1943
-35.6 C (-32.1 F)
1944
-36.7 C (-34.1 F)
1945
-31.1 C (-24.0 F)
1946
-28.3 C (-18.9 F)
1947
-28.3 C (-18.9 F)
1948
-33.3 C (-27.9 F)
1949
-37.8 C (-36.0 F)
1950
-36.7 C (-34.1 F)
1951
-33.9 C (-29.0 F)
1952
-32.2 C (-26.0 F)
1953
-24.4 C (-11.9 F)
1954
-39.4 C (-38.9 F)
1955
-37.8 C (-36.0 F)
1956
-37.2 C (-35.0 F)
1957
-44.4 C (-47.9 F)
1958
-24.4 C (-11.9 F)
1959
-40.0 C (-40.0 F)
1960
-34.4 C (-29.9 F)
1961
-34.4 C (-29.9 F)
1962
-43.9 C (-47.0 F)
1963
-40.6 C (-41.1 F)
Wettest day (Rx1day)
The wettest day of the year at Drummond FAA AP, 1927 to 1963. The record is 43.9 mm (1.7 in) in 1933, marked on the chart; the median year is 19.8 mm (0.8 in).
Wettest day (Rx1day) at Drummond FAA AP by year
Year
Wettest day (Rx1day)
1927
19.8 mm (0.8 in)
1928
10.9 mm (0.4 in)
1929
13.7 mm (0.5 in)
1930
17.8 mm (0.7 in)
1931
12.2 mm (0.5 in)
1932
19.3 mm (0.8 in)
1933
43.9 mm (1.7 in)
1934
16.5 mm (0.6 in)
1935
18.3 mm (0.7 in)
1936
11.9 mm (0.5 in)
1937
10.2 mm (0.4 in)
1938
29.7 mm (1.2 in)
1939
27.2 mm (1.1 in)
1940
33.0 mm (1.3 in)
1941
22.9 mm (0.9 in)
1942
22.1 mm (0.9 in)
1943
26.7 mm (1.1 in)
1944
29.5 mm (1.2 in)
1945
23.4 mm (0.9 in)
1946
25.7 mm (1.0 in)
1947
23.1 mm (0.9 in)
1948
18.5 mm (0.7 in)
1949
15.5 mm (0.6 in)
1950
33.5 mm (1.3 in)
1951
20.6 mm (0.8 in)
1952
21.8 mm (0.9 in)
1953
27.7 mm (1.1 in)
1954
20.8 mm (0.8 in)
1955
17.0 mm (0.7 in)
1956
17.3 mm (0.7 in)
1957
30.5 mm (1.2 in)
1958
16.8 mm (0.7 in)
1959
16.0 mm (0.6 in)
1960
10.4 mm (0.4 in)
1961
19.3 mm (0.8 in)
1962
22.4 mm (0.9 in)
1963
11.4 mm (0.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Drummond FAA AP, 1927 to 1963. The record is 59.4 mm (2.3 in) in 1944, marked on the chart; the median year is 33.3 mm (1.3 in).
Wettest five days (Rx5day) at Drummond FAA AP by year
Year
Wettest five days (Rx5day)
1927
35.1 mm (1.4 in)
1928
19.0 mm (0.7 in)
1929
26.7 mm (1.1 in)
1930
30.8 mm (1.2 in)
1931
23.4 mm (0.9 in)
1932
27.4 mm (1.1 in)
1933
52.5 mm (2.1 in)
1934
31.0 mm (1.2 in)
1935
22.1 mm (0.9 in)
1936
17.2 mm (0.7 in)
1937
18.8 mm (0.7 in)
1938
42.3 mm (1.7 in)
1939
33.3 mm (1.3 in)
1940
52.3 mm (2.1 in)
1941
55.7 mm (2.2 in)
1942
40.4 mm (1.6 in)
1943
29.5 mm (1.2 in)
1944
59.4 mm (2.3 in)
1945
41.7 mm (1.6 in)
1946
36.4 mm (1.4 in)
1947
39.1 mm (1.5 in)
1948
35.3 mm (1.4 in)
1949
46.3 mm (1.8 in)
1950
49.8 mm (2.0 in)
1951
24.2 mm (1.0 in)
1952
36.5 mm (1.4 in)
1953
39.2 mm (1.5 in)
1954
33.5 mm (1.3 in)
1955
29.3 mm (1.2 in)
1956
25.2 mm (1.0 in)
1957
55.1 mm (2.2 in)
1958
33.0 mm (1.3 in)
1959
31.8 mm (1.3 in)
1960
16.0 mm (0.6 in)
1961
39.8 mm (1.6 in)
1962
32.0 mm (1.3 in)
1963
16.2 mm (0.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Drummond FAA AP, 1927 to 1963. The record is 64 days in 1953, marked on the chart; the median year is 33 days.
Longest dry spell (CDD) at Drummond FAA AP by year
Year
Longest dry spell (CDD)
1927
27 days
1928
40 days
1929
37 days
1930
41 days
1931
45 days
1932
26 days
1933
29 days
1934
34 days
1935
45 days
1936
16 days
1937
33 days
1938
25 days
1939
29 days
1940
33 days
1941
27 days
1942
31 days
1943
37 days
1944
36 days
1945
24 days
1946
33 days
1947
23 days
1948
36 days
1949
40 days
1950
27 days
1951
20 days
1952
47 days
1953
64 days
1954
44 days
1955
44 days
1956
42 days
1957
21 days
1958
31 days
1959
43 days
1960
32 days
1961
30 days
1962
23 days
1963
23 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 Drummond FAA AP falls on 23 June and the median first autumn frost on 25 August, which leaves a median of 61 days between them.
Fitted over all years, the growing season changes by -26.5 days per decade at this station.
Frost dates and growing season at Drummond FAA AP
Measure
Median, all years
Earliest period
Recent period (1931 to 1962)
Recent against earliest
Fitted trend
Last spring frost
23 June
n/a
23 June
n/a
+7.3 days per decade
First autumn frost
25 August
n/a
22 August
n/a
-19.2 days per decade
Growing days
61 days
n/a
60 days
n/a
-26.5 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
32 years, 1929 to 1962
A day with at least 21.1 mm (0.8 in) of rain is expected about once in 2 years. A day with at least 44.8 mm (1.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Drummond FAA AP: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
21.1 mm (0.8 in)
5 years
27.6 mm (1.1 in)
10 years
31.8 mm (1.3 in)
25 years
37.1 mm (1.5 in)
50 years
41.0 mm (1.6 in)
Longer than the 32 years of record
100 years
44.8 mm (1.8 in)
Longer than the 32 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, 32 years of values from 1929 to 1962.
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: 43.9 mm (1.7 in) in 1933; 33.5 mm (1.3 in) in 1950; 33.0 mm (1.3 in) in 1940.
Download the Data
Data for Drummond FAA AP standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Drummond FAA AP 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.