West Lebanon Weather Records (USC00279318)

Record envelope, standing records and threshold days for West Lebanon (USC00279318), New Hampshire, United States, with 30 years of record.

Key Facts for West Lebanon

West Lebanon (USC00279318) is a weather station in New Hampshire, United States at 43.63 latitude and -72.32 longitude, 116 m (380 ft) above sea level.
The station reports from 1931 to 1960, 30 years of record.
1,464 records set at West Lebanon still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.

About the Station

Location: New Hampshire, United States, 43.63 latitude, -72.32 longitude.
Elevation: 116 m (380 ft).
Period of record: 1931 to 1960, 30 years.
Eligible elements: tmax, tmin, prcp, snow.

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 West Lebanon. 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 West Lebanon, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	20.0 C (68.0 F)	-34.4 C (-29.9 F)	n/a	n/a
Feb	17.2 C (63.0 F)	-38.9 C (-38.0 F)	n/a	n/a
Mar	28.9 C (84.0 F)	-33.3 C (-27.9 F)	n/a	n/a
Apr	31.1 C (88.0 F)	-12.2 C (10.0 F)	n/a	n/a
May	33.9 C (93.0 F)	-6.7 C (19.9 F)	n/a	n/a
Jun	36.7 C (98.1 F)	-0.6 C (30.9 F)	n/a	n/a
Jul	37.8 C (100.0 F)	3.3 C (37.9 F)	n/a	n/a
Aug	38.3 C (100.9 F)	0.0 C (32.0 F)	n/a	n/a
Sep	35.6 C (96.1 F)	-5.6 C (21.9 F)	n/a	n/a
Oct	32.8 C (91.0 F)	-10.0 C (14.0 F)	n/a	n/a
Nov	26.7 C (80.1 F)	-25.0 C (-13.0 F)	n/a	n/a
Dec	18.3 C (64.9 F)	-37.8 C (-36.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at West Lebanon still stand. 1936 holds the most, with 81.

Standing records at West Lebanon by the year they were set
Year set	Standing records
1931	38
1932	53
1933	61
1934	63
1935	57
1936	81
1937	53
1938	67
1939	46
1940	38
1941	35
1942	42
1943	59
1944	39
1945	49
1946	73
1947	51
1948	50
1949	61
1950	41
1951	38
1952	30
1953	57
1954	39
1955	38
1956	57
1957	47
1958	38
1959	46
1960	17

Wettest Day of Each Month

Apr: 85.6 mm (3.4 in)

The wettest day on record for each calendar month at West Lebanon. The most was 85.6 mm (3.4 in) on 25 April 1945.

Record daily precipitation for each month at West Lebanon
Month	Record daily precipitation (mm)	Date
Jan	39.4 mm (1.6 in)	9 January 1935
Feb	39.4 mm (1.6 in)	18 February 1952
Mar	40.6 mm (1.6 in)	16 March 1937
Apr	85.6 mm (3.4 in)	25 April 1945
May	52.1 mm (2.1 in)	15 May 1937
Jun	56.4 mm (2.2 in)	19 June 1934
Jul	84.1 mm (3.3 in)	1 July 1937
Aug	58.9 mm (2.3 in)	14 August 1955
Sep	79.2 mm (3.1 in)	13 September 1960
Oct	51.1 mm (2.0 in)	8 October 1951
Nov	61.2 mm (2.4 in)	26 November 1950
Dec	50.5 mm (2.0 in)	12 December 1952

Period of Record Coverage

1931 to 1960

30 years of record at West Lebanon, 1931 to 1960. 5 years have data for under 90 percent of days and are left out of rankings: 1931, 1939, 1940, 1948, 1960.

Days with data per year at West Lebanon
Year	Days with data	Share of year	Complete
1931	239	65%	No
1932	361	99%	Yes
1933	360	99%	Yes
1934	363	99%	Yes
1935	359	98%	Yes
1936	362	99%	Yes
1937	363	99%	Yes
1938	356	98%	Yes
1939	328	90%	No
1940	329	90%	No
1941	345	95%	Yes
1942	357	98%	Yes
1943	364	100%	Yes
1944	366	100%	Yes
1945	334	92%	Yes
1946	359	98%	Yes
1947	346	95%	Yes
1948	328	90%	No
1949	362	99%	Yes
1950	362	99%	Yes
1951	364	100%	Yes
1952	366	100%	Yes
1953	361	99%	Yes
1954	330	90%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	364	100%	Yes
1958	365	100%	Yes
1959	364	100%	Yes
1960	273	75%	No

Latest Records

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

Climate Trend

23 complete years, 1932 to 1959

One stripe for each of 23 complete years at West Lebanon, 1932 to 1959. Blue stripes are years cooler than the station's own mean of 6.9 C (44.5 F); red stripes are warmer. The coolest year was 1958, at 5.8 C (42.4 F), and the warmest was 1949, at 8.4 C (47.2 F). The strongest colour marks a difference of 1.5 C (2.7 F).

Annual mean temperature at West Lebanon as warming stripes, 1932 to 1959
Year	Annual mean temperature	Difference from the station mean
1932	7.3 C	+0.34 C
1933	6.7 C	-0.22 C
1934	6.0 C	-0.99 C
1935	6.0 C	-0.94 C
1936	6.6 C	-0.30 C
1937	7.5 C	+0.53 C
1938	7.5 C	+0.58 C
1941	7.2 C	+0.29 C
1942	7.5 C	+0.52 C
1943	5.9 C	-1.04 C
1944	6.1 C	-0.83 C
1946	7.3 C	+0.35 C
1947	7.2 C	+0.22 C
1949	8.4 C	+1.48 C
1950	6.8 C	-0.18 C
1951	7.0 C	+0.07 C
1952	7.4 C	+0.50 C
1953	8.1 C	+1.18 C
1955	7.3 C	+0.31 C
1956	6.1 C	-0.85 C
1957	7.0 C	+0.09 C
1958	5.8 C	-1.15 C
1959	6.9 C	-0.02 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1931 to 1960

Yearly extremes at West Lebanon: 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)	1933	35.3 C (95.5 F)	30
Coldest night (TNn)	-38.9 C (-38.0 F)	1943	-29.7 C (-21.5 F)	30
Wettest day (Rx1day)	85.6 mm (3.4 in)	1945	51.9 mm (2.0 in)	30
Wettest five days (Rx5day)	143.5 mm (5.6 in)	1955	67.4 mm (2.7 in)	30
Longest dry spell (CDD)	31 days	1953	18 days	30

Hottest day (TXx)

The hottest day of the year at West Lebanon, 1931 to 1960. The record is 38.3 C (100.9 F) in 1933, marked on the chart; the median year is 35.3 C (95.5 F).

Hottest day (TXx) at West Lebanon by year
Year	Hottest day (TXx)
1931	36.1 C (97.0 F)
1932	34.4 C (93.9 F)
1933	38.3 C (100.9 F)
1934	35.0 C (95.0 F)
1935	34.4 C (93.9 F)
1936	37.2 C (99.0 F)
1937	34.4 C (93.9 F)
1938	36.7 C (98.1 F)
1939	36.7 C (98.1 F)
1940	35.6 C (96.1 F)
1941	35.6 C (96.1 F)
1942	35.0 C (95.0 F)
1943	34.4 C (93.9 F)
1944	35.6 C (96.1 F)
1945	35.0 C (95.0 F)
1946	36.7 C (98.1 F)
1947	37.2 C (99.0 F)
1948	37.8 C (100.0 F)
1949	36.1 C (97.0 F)
1950	33.9 C (93.0 F)
1951	33.3 C (91.9 F)
1952	36.1 C (97.0 F)
1953	37.8 C (100.0 F)
1954	35.0 C (95.0 F)
1955	36.1 C (97.0 F)
1956	35.0 C (95.0 F)
1957	35.0 C (95.0 F)
1958	33.3 C (91.9 F)
1959	35.0 C (95.0 F)
1960	33.9 C (93.0 F)

Coldest night (TNn)

The coldest night of the year at West Lebanon, 1931 to 1960. The record is -38.9 C (-38.0 F) in 1943, marked on the chart; the median year is -29.7 C (-21.5 F).

Coldest night (TNn) at West Lebanon by year
Year	Coldest night (TNn)
1931	-32.2 C (-26.0 F)
1932	-28.9 C (-20.0 F)
1933	-37.8 C (-36.0 F)
1934	-36.7 C (-34.1 F)
1935	-34.4 C (-29.9 F)
1936	-33.3 C (-27.9 F)
1937	-21.7 C (-7.1 F)
1938	-31.1 C (-24.0 F)
1939	-29.4 C (-20.9 F)
1940	-30.6 C (-23.1 F)
1941	-27.8 C (-18.0 F)
1942	-30.0 C (-22.0 F)
1943	-38.9 C (-38.0 F)
1944	-29.4 C (-20.9 F)
1945	-30.0 C (-22.0 F)
1946	-28.3 C (-18.9 F)
1947	-28.9 C (-20.0 F)
1948	-33.3 C (-27.9 F)
1949	-26.7 C (-16.1 F)
1950	-29.4 C (-20.9 F)
1951	-29.4 C (-20.9 F)
1952	-25.0 C (-13.0 F)
1953	-22.2 C (-8.0 F)
1954	-32.2 C (-26.0 F)
1955	-27.8 C (-18.0 F)
1956	-26.7 C (-16.1 F)
1957	-33.9 C (-29.0 F)
1958	-30.6 C (-23.1 F)
1959	-31.1 C (-24.0 F)
1960	-23.3 C (-9.9 F)

Wettest day (Rx1day)

The wettest day of the year at West Lebanon, 1931 to 1960. The record is 85.6 mm (3.4 in) in 1945, marked on the chart; the median year is 51.9 mm (2.0 in).

Wettest day (Rx1day) at West Lebanon by year
Year	Wettest day (Rx1day)
1931	61.7 mm (2.4 in)
1932	55.1 mm (2.2 in)
1933	45.0 mm (1.8 in)
1934	61.7 mm (2.4 in)
1935	39.4 mm (1.6 in)
1936	35.1 mm (1.4 in)
1937	84.1 mm (3.3 in)
1938	52.6 mm (2.1 in)
1939	36.1 mm (1.4 in)
1940	48.3 mm (1.9 in)
1941	62.2 mm (2.4 in)
1942	50.5 mm (2.0 in)
1943	45.2 mm (1.8 in)
1944	53.6 mm (2.1 in)
1945	85.6 mm (3.4 in)
1946	41.9 mm (1.6 in)
1947	37.6 mm (1.5 in)
1948	47.5 mm (1.9 in)
1949	22.9 mm (0.9 in)
1950	61.2 mm (2.4 in)
1951	51.1 mm (2.0 in)
1952	60.5 mm (2.4 in)
1953	55.1 mm (2.2 in)
1954	54.9 mm (2.2 in)
1955	58.9 mm (2.3 in)
1956	46.2 mm (1.8 in)
1957	27.7 mm (1.1 in)
1958	31.8 mm (1.3 in)
1959	57.7 mm (2.3 in)
1960	79.2 mm (3.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at West Lebanon, 1931 to 1960. The record is 143.5 mm (5.6 in) in 1955, marked on the chart; the median year is 67.4 mm (2.7 in).

Wettest five days (Rx5day) at West Lebanon by year
Year	Wettest five days (Rx5day)
1931	130.0 mm (5.1 in)
1932	64.4 mm (2.5 in)
1933	63.0 mm (2.5 in)
1934	85.8 mm (3.4 in)
1935	55.9 mm (2.2 in)
1936	56.5 mm (2.2 in)
1937	85.2 mm (3.4 in)
1938	142.3 mm (5.6 in)
1939	64.8 mm (2.6 in)
1940	63.8 mm (2.5 in)
1941	87.6 mm (3.4 in)
1942	66.5 mm (2.6 in)
1943	80.1 mm (3.2 in)
1944	74.3 mm (2.9 in)
1945	99.3 mm (3.9 in)
1946	62.8 mm (2.5 in)
1947	65.5 mm (2.6 in)
1948	68.3 mm (2.7 in)
1949	63.3 mm (2.5 in)
1950	69.4 mm (2.7 in)
1951	62.6 mm (2.5 in)
1952	81.7 mm (3.2 in)
1953	55.9 mm (2.2 in)
1954	76.0 mm (3.0 in)
1955	143.5 mm (5.6 in)
1956	66.0 mm (2.6 in)
1957	48.3 mm (1.9 in)
1958	50.3 mm (2.0 in)
1959	88.6 mm (3.5 in)
1960	113.0 mm (4.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at West Lebanon, 1931 to 1960. The record is 31 days in 1953, marked on the chart; the median year is 18 days.

Longest dry spell (CDD) at West Lebanon by year
Year	Longest dry spell (CDD)
1931	14 days
1932	21 days
1933	11 days
1934	14 days
1935	15 days
1936	14 days
1937	20 days
1938	22 days
1939	25 days
1940	22 days
1941	24 days
1942	17 days
1943	19 days
1944	23 days
1945	17 days
1946	16 days
1947	28 days
1948	14 days
1949	19 days
1950	16 days
1951	16 days
1952	20 days
1953	31 days
1954	13 days
1955	18 days
1956	15 days
1957	20 days
1958	18 days
1959	11 days
1960	11 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

23 years with a frost

Across 23 years with a frost, the median last spring frost at West Lebanon falls on 21 May and the median first autumn frost on 26 September, which leaves a median of 126 days between them.

Frost dates and growing season at West Lebanon
Measure	Median, all years	Earliest period	Recent period (1932 to 1959)	Recent against earliest	Fitted trend
Last spring frost	21 May	n/a	21 May	n/a	n/a
First autumn frost	26 September	n/a	26 September	n/a	n/a
Growing days	126 days	n/a	126 days	n/a	n/a

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.

Download the Data

Data for West Lebanon standing records by year: CSV or JSON. Field meanings are on the data page.
Data for West Lebanon 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 2026-10-15 (15 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).