Daily records
Page built 2026-10-17
Data as of 2025-12-31
Search
Built 2026-10-17 (17 October 2026)

Portsmouth Pease AFB Weather Records (USW00004743)

Record envelope, standing records and threshold days for Portsmouth Pease AFB (USW00004743), New Hampshire, United States, with 71 years of record.

Key Facts for Portsmouth Pease AFB

  • Portsmouth Pease AFB (USW00004743) is a weather station in New Hampshire, United States at 43.08 latitude and -70.82 longitude, 39 m (128 ft) above sea level.
  • The station reports from 1956 to 2026, 71 years of record.
  • 1,464 records set at Portsmouth Pease AFB still stand.
  • Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

  • Location: New Hampshire, United States, 43.08 latitude, -70.82 longitude.
  • Elevation: 39 m (128 ft).
  • Period of record: 1956 to 2026, 71 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

52 days at or beyond a record
Daily record high and record low at Portsmouth Pease AFB, with 2026 drawn through them The band shows the record high and record low for each calendar day at Portsmouth Pease AFB. The lines show the 2026 daily maximum and minimum. 52 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Portsmouth Pease AFB. The lines show the 2026 daily maximum and minimum. 52 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Portsmouth Pease AFB, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan14.4 C (57.9 F)-26.7 C (-16.1 F)7.1 C (44.8 F)-17.5 C (0.5 F)
Feb18.9 C (66.0 F)-22.8 C (-9.0 F)10.3 C (50.5 F)-17.2 C (1.0 F)
Mar23.9 C (75.0 F)-17.8 C (0.0 F)18.4 C (65.1 F)-13.3 C (8.1 F)
Apr32.2 C (90.0 F)-7.8 C (18.0 F)28.5 C (83.3 F)-2.6 C (27.3 F)
May37.2 C (99.0 F)-1.7 C (28.9 F)27.0 C (80.6 F)5.1 C (41.2 F)
Jun38.0 C (100.4 F)5.6 C (42.1 F)38.0 C (100.4 F)8.4 C (47.1 F)
Jul38.3 C (100.9 F)8.3 C (46.9 F)37.2 C (99.0 F)11.4 C (52.5 F)
Aug35.0 C (95.0 F)4.4 C (39.9 F)34.4 C (93.9 F)10.0 C (50.0 F)
Sep34.4 C (93.9 F)0.0 C (32.0 F)29.8 C (85.6 F)6.1 C (43.0 F)
Oct30.6 C (87.1 F)-5.0 C (23.0 F)30.1 C (86.2 F)-0.2 C (31.6 F)
Nov23.9 C (75.0 F)-11.1 C (12.0 F)16.8 C (62.2 F)-4.3 C (24.3 F)
Dec16.7 C (62.1 F)-22.8 C (-9.0 F)13.0 C (55.4 F)-14.0 C (6.8 F)

Which Years Hold Standing Records

1,464 standing records
Standing records at Portsmouth Pease AFB by the year they were set 1,464 records at Portsmouth Pease AFB still stand. 1959 holds the most, with 118. 0501001501956: 751957: 971958: 791959: 1181960: 741961: 951962: 771963: 1051964: 881965: 1061966: 951967: 1041968: 921969: 731970: 742025: 11219561958196019621964196619681970
1,464 records at Portsmouth Pease AFB still stand. 1959 holds the most, with 118.
Standing records at Portsmouth Pease AFB by the year they were set
Year setStanding records
195675
195797
195879
1959118
196074
196195
196277
1963105
196488
1965106
196695
1967104
196892
196973
197074
2025112

Wettest Day of Each Month

Oct: 170.9 mm (6.7 in)
Record daily precipitation for each month at Portsmouth Pease AFB The wettest day on record for each calendar month at Portsmouth Pease AFB. The most was 170.9 mm (6.7 in) on 6 October 1962. 050100150200 Jan: 72.6 mm (2.9 in), 26 January 1958 Jan Feb: 104.4 mm (4.1 in), 25 February 1965 Feb Mar: 61.7 mm (2.4 in), 18 March 1968 Mar Apr: 59.2 mm (2.3 in), 2 April 1970 Apr May: 52.3 mm (2.1 in), 24 May 1960 May Jun: 48.3 mm (1.9 in), 3 June 1956 Jun Jul: 60.2 mm (2.4 in), 16 July 1961 Jul Aug: 42.2 mm (1.7 in), 31 August 1959 Aug Sep: 102.4 mm (4.0 in), 12 September 1960 Sep Oct: 170.9 mm (6.7 in), 6 October 1962 Oct Nov: 103.6 mm (4.1 in), 7 November 1963 Nov Dec: 77.5 mm (3.1 in), 26 December 1969 Dec
The wettest day on record for each calendar month at Portsmouth Pease AFB. The most was 170.9 mm (6.7 in) on 6 October 1962.
Record daily precipitation for each month at Portsmouth Pease AFB
MonthRecord daily precipitation (mm)Date
Jan72.6 mm (2.9 in)26 January 1958
Feb104.4 mm (4.1 in)25 February 1965
Mar61.7 mm (2.4 in)18 March 1968
Apr59.2 mm (2.3 in)2 April 1970
May52.3 mm (2.1 in)24 May 1960
Jun48.3 mm (1.9 in)3 June 1956
Jul60.2 mm (2.4 in)16 July 1961
Aug42.2 mm (1.7 in)31 August 1959
Sep102.4 mm (4.0 in)12 September 1960
Oct170.9 mm (6.7 in)6 October 1962
Nov103.6 mm (4.1 in)7 November 1963
Dec77.5 mm (3.1 in)26 December 1969

Period of Record Coverage

1956 to 2025
Days with data per year at Portsmouth Pease AFB 16 years of record at Portsmouth Pease AFB, 1956 to 2025. 1 years have data for under 90 percent of days and are left out of rankings: 1956. 1956: 265 of 366 days1957: 365 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 365 of 366 days1965: 364 of 365 days1966: 364 of 365 days1967: 363 of 365 days1968: 364 of 366 days1969: 364 of 365 days1970: 363 of 365 days2025: 361 of 365 days1960196519702025
16 years of record at Portsmouth Pease AFB, 1956 to 2025. 1 years have data for under 90 percent of days and are left out of rankings: 1956.
Days with data per year at Portsmouth Pease AFB
YearDays with dataShare of yearComplete
195626572%No
1957365100%Yes
1958365100%Yes
1959365100%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964365100%Yes
1965364100%Yes
1966364100%Yes
196736399%Yes
196836499%Yes
1969364100%Yes
197036399%Yes
202536199%Yes

Latest Records

0

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

Climate Trend

15 complete years, 1957 to 2025
Annual mean temperature at Portsmouth Pease AFB as warming stripes, 1957 to 2025 One stripe for each of 15 complete years at Portsmouth Pease AFB, 1957 to 2025. Blue stripes are years cooler than the station's own mean of 8.6 C (47.4 F); red stripes are warmer. The coolest year was 1968, at 7.8 C (46.0 F), and the warmest was 2025, at 10.2 C (50.3 F). The strongest colour marks a difference of 1.6 C (2.9 F). 1957: 9.4 C, +0.8 C from the station mean1958: 8.3 C, -0.3 C from the station mean1959: 9.2 C, +0.6 C from the station mean1960: 8.9 C, +0.3 C from the station mean1961: 8.3 C, -0.3 C from the station mean1962: 7.9 C, -0.7 C from the station mean1963: 8.2 C, -0.4 C from the station mean1964: 9.2 C, +0.6 C from the station mean1965: 8.5 C, -0.1 C from the station mean1966: 7.9 C, -0.7 C from the station mean1967: 8.0 C, -0.6 C from the station mean1968: 7.8 C, -0.8 C from the station mean1969: 8.5 C, -0.1 C from the station mean1970: 8.6 C, 0.0 C from the station mean2025: 10.2 C, +1.6 C from the station mean1957197019801990200020102020
One stripe for each of 15 complete years at Portsmouth Pease AFB, 1957 to 2025. Blue stripes are years cooler than the station's own mean of 8.6 C (47.4 F); red stripes are warmer. The coolest year was 1968, at 7.8 C (46.0 F), and the warmest was 2025, at 10.2 C (50.3 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Portsmouth Pease AFB as warming stripes, 1957 to 2025
YearAnnual mean temperatureDifference from the station mean
19579.4 C+0.85 C
19588.3 C-0.29 C
19599.2 C+0.60 C
19608.9 C+0.28 C
19618.3 C-0.31 C
19627.9 C-0.71 C
19638.2 C-0.41 C
19649.2 C+0.58 C
19658.5 C-0.05 C
19667.9 C-0.70 C
19678.0 C-0.56 C
19687.8 C-0.80 C
19698.5 C-0.08 C
19708.6 C+0.02 C
202510.2 C+1.59 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

1956 to 2026
Yearly extremes at Portsmouth Pease AFB: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.3 C (100.9 F)196435.0 C (95.0 F)17
Coldest night (TNn)-26.7 C (-16.1 F)1957-20.6 C (-5.1 F)17
Wettest day (Rx1day)170.9 mm (6.7 in)196270.9 mm (2.8 in)16
Wettest five days (Rx5day)248.9 mm (9.8 in)1962105.9 mm (4.2 in)16
Longest dry spell (CDD)29 days196417 days16

Hottest day (TXx)

Hottest day (TXx) at Portsmouth Pease AFB by year The hottest day of the year at Portsmouth Pease AFB, 1956 to 2026. The record is 38.3 C (100.9 F) in 1964, marked on the chart; the median year is 35.0 C (95.0 F). 32343638401960198020002020Record: 38.3 C (100.9 F) in 1964
The hottest day of the year at Portsmouth Pease AFB, 1956 to 2026. The record is 38.3 C (100.9 F) in 1964, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Portsmouth Pease AFB by year
YearHottest day (TXx)
195635.0 C (95.0 F)
195733.9 C (93.0 F)
195833.3 C (91.9 F)
195935.0 C (95.0 F)
196033.3 C (91.9 F)
196132.2 C (90.0 F)
196232.2 C (90.0 F)
196335.0 C (95.0 F)
196438.3 C (100.9 F)
196535.0 C (95.0 F)
196635.0 C (95.0 F)
196733.9 C (93.0 F)
196835.0 C (95.0 F)
196933.3 C (91.9 F)
197033.9 C (93.0 F)
202538.0 C (100.4 F)
202635.5 C (95.9 F)

Coldest night (TNn)

Coldest night (TNn) at Portsmouth Pease AFB by year The coldest night of the year at Portsmouth Pease AFB, 1956 to 2026. The record is -26.7 C (-16.1 F) in 1957, marked on the chart; the median year is -20.6 C (-5.1 F). -27.5-25-22.5-20-17.5-151960198020002020Record: -26.7 C (-16.1 F) in 1957
The coldest night of the year at Portsmouth Pease AFB, 1956 to 2026. The record is -26.7 C (-16.1 F) in 1957, marked on the chart; the median year is -20.6 C (-5.1 F).
Coldest night (TNn) at Portsmouth Pease AFB by year
YearColdest night (TNn)
1956-16.7 C (1.9 F)
1957-26.7 C (-16.1 F)
1958-20.0 C (-4.0 F)
1959-19.4 C (-2.9 F)
1960-17.2 C (1.0 F)
1961-23.3 C (-9.9 F)
1962-21.7 C (-7.1 F)
1963-21.1 C (-6.0 F)
1964-20.0 C (-4.0 F)
1965-23.3 C (-9.9 F)
1966-20.6 C (-5.1 F)
1967-22.8 C (-9.0 F)
1968-24.4 C (-11.9 F)
1969-18.3 C (-0.9 F)
1970-20.6 C (-5.1 F)
2025-17.5 C (0.5 F)
2026-18.0 C (-0.4 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Portsmouth Pease AFB by year The wettest day of the year at Portsmouth Pease AFB, 1956 to 2026. The record is 170.9 mm (6.7 in) in 1962, marked on the chart; the median year is 70.9 mm (2.8 in). 0501001502001960198020002020Record: 170.9 mm (6.7 in) in 1962
The wettest day of the year at Portsmouth Pease AFB, 1956 to 2026. The record is 170.9 mm (6.7 in) in 1962, marked on the chart; the median year is 70.9 mm (2.8 in).
Wettest day (Rx1day) at Portsmouth Pease AFB by year
YearWettest day (Rx1day)
195669.3 mm (2.7 in)
195735.3 mm (1.4 in)
195872.6 mm (2.9 in)
195959.9 mm (2.4 in)
1960102.4 mm (4.0 in)
196190.2 mm (3.6 in)
1962170.9 mm (6.7 in)
1963103.6 mm (4.1 in)
196455.1 mm (2.2 in)
1965104.4 mm (4.1 in)
196667.6 mm (2.7 in)
196743.2 mm (1.7 in)
196866.8 mm (2.6 in)
196977.5 mm (3.1 in)
197078.5 mm (3.1 in)
2025n/a
202635.9 mm (1.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Portsmouth Pease AFB by year The wettest five days of the year at Portsmouth Pease AFB, 1956 to 2026. The record is 248.9 mm (9.8 in) in 1962, marked on the chart; the median year is 105.9 mm (4.2 in). 501001502002501960198020002020Record: 248.9 mm (9.8 in) in 1962
The wettest five days of the year at Portsmouth Pease AFB, 1956 to 2026. The record is 248.9 mm (9.8 in) in 1962, marked on the chart; the median year is 105.9 mm (4.2 in).
Wettest five days (Rx5day) at Portsmouth Pease AFB by year
YearWettest five days (Rx5day)
1956101.0 mm (4.0 in)
195762.7 mm (2.5 in)
1958164.3 mm (6.5 in)
195965.0 mm (2.6 in)
1960120.2 mm (4.7 in)
1961143.8 mm (5.7 in)
1962248.9 mm (9.8 in)
1963147.9 mm (5.8 in)
196471.9 mm (2.8 in)
1965110.8 mm (4.4 in)
196687.2 mm (3.4 in)
196782.4 mm (3.2 in)
1968121.0 mm (4.8 in)
1969112.6 mm (4.4 in)
197084.4 mm (3.3 in)
2025n/a
202659.6 mm (2.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Portsmouth Pease AFB by year The longest dry spell of the year at Portsmouth Pease AFB, 1956 to 2026. The record is 29 days in 1964, marked on the chart; the median year is 17 days. 01020301960198020002020Record: 29 days in 1964
The longest dry spell of the year at Portsmouth Pease AFB, 1956 to 2026. The record is 29 days in 1964, marked on the chart; the median year is 17 days.
Longest dry spell (CDD) at Portsmouth Pease AFB by year
YearLongest dry spell (CDD)
195614 days
195724 days
195816 days
195918 days
196018 days
196121 days
196213 days
196324 days
196429 days
196515 days
196615 days
196713 days
196822 days
196914 days
197017 days
2025n/a
20262 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 Portsmouth Pease AFB standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Portsmouth Pease AFB 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 . Last revised (2025-12-31).