Belfry 4 SSW Weather Records (USC00240617)

Record envelope, standing records and threshold days for Belfry 4 SSW (USC00240617), Montana, United States, with 99 years of record.

Key Facts for Belfry 4 SSW

Belfry 4 SSW (USC00240617) is a weather station in Montana, United States at 45.08 latitude and -109.03 longitude, 1,190 m (3,904 ft) above sea level.
The station reports from 1876 to 1974, 99 years of record.
1,464 records set at Belfry 4 SSW still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Montana, United States, 45.08 latitude, -109.03 longitude.
Elevation: 1,190 m (3,904 ft).
Period of record: 1876 to 1974, 99 years.
Eligible elements: none yet.

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 Belfry 4 SSW. 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 Belfry 4 SSW, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	22.2 C (72.0 F)	-34.4 C (-29.9 F)	n/a	n/a
Feb	20.0 C (68.0 F)	-28.3 C (-18.9 F)	n/a	n/a
Mar	24.4 C (75.9 F)	-28.3 C (-18.9 F)	n/a	n/a
Apr	30.6 C (87.1 F)	-12.8 C (9.0 F)	n/a	n/a
May	35.6 C (96.1 F)	-7.8 C (18.0 F)	n/a	n/a
Jun	37.8 C (100.0 F)	-1.7 C (28.9 F)	n/a	n/a
Jul	39.4 C (102.9 F)	1.7 C (35.1 F)	n/a	n/a
Aug	40.6 C (105.1 F)	1.7 C (35.1 F)	n/a	n/a
Sep	35.0 C (95.0 F)	-6.7 C (19.9 F)	n/a	n/a
Oct	30.6 C (87.1 F)	-21.1 C (-6.0 F)	n/a	n/a
Nov	22.2 C (72.0 F)	-28.9 C (-20.0 F)	n/a	n/a
Dec	18.9 C (66.0 F)	-35.6 C (-32.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Belfry 4 SSW still stand. 1961 holds the most, with 134.

Wettest Day of Each Month

May: 50.8 mm (2.0 in)

The wettest day on record for each calendar month at Belfry 4 SSW. The most was 50.8 mm (2.0 in) on 21 May 1952.

Record daily precipitation for each month at Belfry 4 SSW
Month	Record daily precipitation (mm)	Date
Jan	22.1 mm (0.9 in)	1 January 1972
Feb	8.4 mm (0.33 in)	20 February 1957
Mar	11.9 mm (0.5 in)	23 March 1973
Apr	20.8 mm (0.8 in)	11 April 1966
May	50.8 mm (2.0 in)	21 May 1952
Jun	49.5 mm (1.9 in)	25 June 1969
Jul	15.7 mm (0.6 in)	25 July 1958
Aug	38.4 mm (1.5 in)	16 August 1960
Sep	32.5 mm (1.3 in)	8 September 1973
Oct	30.5 mm (1.2 in)	1 October 1971
Nov	27.9 mm (1.1 in)	13 November 1969
Dec	8.1 mm (0.32 in)	26 December 1967

Period of Record Coverage

1959 to 1974

16 years of record at Belfry 4 SSW, 1959 to 1974. 9 years have data for under 90 percent of days and are left out of rankings: 1959, 1962, 1963, 1968, 1970, 1971, 1972, 1973 and others.

Days with data per year at Belfry 4 SSW
Year	Days with data	Share of year	Complete
1959	107	29%	No
1960	330	90%	Yes
1961	349	96%	Yes
1962	298	82%	No
1963	130	36%	No
1964	354	97%	Yes
1965	342	94%	Yes
1966	338	93%	Yes
1967	341	93%	Yes
1968	308	84%	No
1969	365	100%	Yes
1970	304	83%	No
1971	269	74%	No
1972	231	63%	No
1973	289	79%	No
1974	133	36%	No

Latest Records

No records were set at this station in the latest data.

Extremes by Year

1876 to 1974

Yearly extremes at Belfry 4 SSW: 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)	1961	37.0 C (98.5 F)	16
Coldest night (TNn)	-35.6 C (-32.1 F)	1972	-30.0 C (-22.0 F)	16
Wettest day (Rx1day)	50.8 mm (2.0 in)	1952	21.1 mm (0.8 in)	25
Wettest five days (Rx5day)	109.7 mm (4.3 in)	1952	32.4 mm (1.3 in)	24
Longest dry spell (CDD)	112 days	1958	48 days	25

Hottest day (TXx)

The hottest day of the year at Belfry 4 SSW, 1876 to 1974. The record is 40.6 C (105.1 F) in 1961, marked on the chart; the median year is 37.0 C (98.5 F).

Hottest day (TXx) at Belfry 4 SSW by year
Year	Hottest day (TXx)
1876	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	34.4 C (93.9 F)
1960	38.9 C (102.0 F)
1961	40.6 C (105.1 F)
1962	36.7 C (98.1 F)
1963	25.6 C (78.1 F)
1964	38.9 C (102.0 F)
1965	36.1 C (97.0 F)
1966	39.4 C (102.9 F)
1967	36.7 C (98.1 F)
1968	35.6 C (96.1 F)
1969	37.8 C (100.0 F)
1970	36.7 C (98.1 F)
1971	37.8 C (100.0 F)
1972	36.1 C (97.0 F)
1973	39.4 C (102.9 F)
1974	37.2 C (99.0 F)

Coldest night (TNn)

The coldest night of the year at Belfry 4 SSW, 1876 to 1974. The record is -35.6 C (-32.1 F) in 1972, marked on the chart; the median year is -30.0 C (-22.0 F).

Coldest night (TNn) at Belfry 4 SSW by year
Year	Coldest night (TNn)
1876	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	-28.9 C (-20.0 F)
1960	-28.3 C (-18.9 F)
1961	-28.9 C (-20.0 F)
1962	-34.4 C (-29.9 F)
1963	-33.3 C (-27.9 F)
1964	-32.8 C (-27.0 F)
1965	-24.4 C (-11.9 F)
1966	-27.8 C (-18.0 F)
1967	-30.0 C (-22.0 F)
1968	-33.3 C (-27.9 F)
1969	-32.8 C (-27.0 F)
1970	-28.9 C (-20.0 F)
1971	-26.1 C (-15.0 F)
1972	-35.6 C (-32.1 F)
1973	-30.6 C (-23.1 F)
1974	-30.0 C (-22.0 F)

Wettest day (Rx1day)

The wettest day of the year at Belfry 4 SSW, 1876 to 1974. The record is 50.8 mm (2.0 in) in 1952, marked on the chart; the median year is 21.1 mm (0.8 in).

Wettest day (Rx1day) at Belfry 4 SSW by year
Year	Wettest day (Rx1day)
1876	0.0 mm (0.00 in)
1951	10.7 mm (0.4 in)
1952	50.8 mm (2.0 in)
1953	20.8 mm (0.8 in)
1954	10.2 mm (0.4 in)
1955	12.2 mm (0.5 in)
1956	18.3 mm (0.7 in)
1957	18.0 mm (0.7 in)
1958	15.7 mm (0.6 in)
1959	12.7 mm (0.5 in)
1960	38.4 mm (1.5 in)
1961	30.5 mm (1.2 in)
1962	24.1 mm (0.9 in)
1963	4.3 mm (0.17 in)
1964	25.4 mm (1.0 in)
1965	24.1 mm (0.9 in)
1966	20.8 mm (0.8 in)
1967	21.1 mm (0.8 in)
1968	15.0 mm (0.6 in)
1969	49.5 mm (1.9 in)
1970	24.9 mm (1.0 in)
1971	30.5 mm (1.2 in)
1972	22.1 mm (0.9 in)
1973	32.5 mm (1.3 in)
1974	26.7 mm (1.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Belfry 4 SSW, 1876 to 1974. The record is 109.7 mm (4.3 in) in 1952, marked on the chart; the median year is 32.4 mm (1.3 in).

Wettest five days (Rx5day) at Belfry 4 SSW by year
Year	Wettest five days (Rx5day)
1876	n/a
1951	10.7 mm (0.4 in)
1952	109.7 mm (4.3 in)
1953	33.1 mm (1.3 in)
1954	22.1 mm (0.9 in)
1955	27.4 mm (1.1 in)
1956	26.2 mm (1.0 in)
1957	22.6 mm (0.9 in)
1958	15.7 mm (0.6 in)
1959	13.3 mm (0.5 in)
1960	38.4 mm (1.5 in)
1961	53.3 mm (2.1 in)
1962	31.6 mm (1.2 in)
1963	5.3 mm (0.21 in)
1964	36.5 mm (1.4 in)
1965	38.0 mm (1.5 in)
1966	21.1 mm (0.8 in)
1967	34.1 mm (1.3 in)
1968	39.3 mm (1.5 in)
1969	83.5 mm (3.3 in)
1970	31.5 mm (1.2 in)
1971	36.3 mm (1.4 in)
1972	27.9 mm (1.1 in)
1973	33.5 mm (1.3 in)
1974	35.9 mm (1.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Belfry 4 SSW, 1876 to 1974. The record is 112 days in 1958, marked on the chart; the median year is 48 days.

Longest dry spell (CDD) at Belfry 4 SSW by year
Year	Longest dry spell (CDD)
1876	1 day
1951	47 days
1952	55 days
1953	55 days
1954	43 days
1955	59 days
1956	76 days
1957	44 days
1958	112 days
1959	80 days
1960	75 days
1961	112 days
1962	44 days
1963	43 days
1964	53 days
1965	51 days
1966	58 days
1967	30 days
1968	39 days
1969	44 days
1970	48 days
1971	56 days
1972	30 days
1973	31 days
1974	28 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.

Download the Data

Data for Belfry 4 SSW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Belfry 4 SSW 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.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).