United States · 1991–2020

Best time to visit
Stratham Station.

August leads for comfortable weather in Stratham Station: typically 27.1°C by day, 15°C at night, with 93 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust
Typical high27.1°C
Typical low15°C
Rain in August93 mm
Comfort

August

August · June · September

78climate match
Beach

July

July · August · June

64climate match
Outdoors

May

May · September · June

74climate match

The weakest month is January, scoring 5 against August’s 78days reach only 1.2°C, 23° below the 24°C the score treats as ideal.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan
51.2° / -8.5°
Feb
53° / -7.6°
Mar
57.2° / -3.5°
Apr
2614° / 1.7°
May
5619.6° / 7.2°
Jun
7624.8° / 12.4°
Jul
7227.8° / 15.7°
Aug
7827.1° / 15°
Sep
7622.9° / 11.1°
Oct
3816.2° / 4.9°
Nov
109.8° / -0.3°
Dec
54° / -5.4°
Monthly climate evidence for Stratham Station — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 23 km away
MonthDayNightRainWet daysSeaDaylightComfortCoverage
January1.2°C-8.5°C91 mm8.95.5°C9 h 205Strong coverage
February3°C-7.6°C90 mm7.54.1°C10 h 275Strong coverage
March7.2°C-3.5°C123 mm9.33.6°C11 h 475Strong coverage
April14°C1.7°C115 mm9.85.5°C13 h 2026Strong coverage
May19.6°C7.2°C104 mm9.99.3°C14 h 3856Strong coverage
June24.8°C12.4°C111 mm9.413.8°C15 h 2176Strong coverage
July27.8°C15.7°C101 mm8.717.2°C15 h 0472Strong coverage
August27.1°C15°C93 mm7.518.1°C13 h 5678Strong coverage
September22.9°C11.1°C102 mm7.516.4°C12 h 2676Strong coverage
October16.2°C4.9°C127 mm912.9°C10 h 5738Strong coverage
November9.8°C-0.3°C104 mm9.29.6°C9 h 3910Strong coverage
December4°C-5.4°C120 mm9.57.4°C9 h 015Strong coverage

What has changed

Stratham Station runs -0.1°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan
+0.6
Feb
+0.2
Mar
-0.6
Apr
0.0
May
-1.1
Jun
-0.7
Jul
-0.1
Aug
-0.3
Sep
+0.6
Oct
+0.4
Nov
-0.5
Dec
+0.2
August daytime highs, 20112025. Last recorded: 26.6°C.
Records at GREENLAND, 1973–2026
MonthRecord highRecord lowWettest dayWettest / driest monthYears
January21.7°C6 Jan 2007-32.2°C22 Jan 198465 mm10 Jan 2024296 mm1979 · driest 13 mm in 198052
February23.9°C22 Feb 2018-26.1°C11 Feb 1983100 mm25 Feb 1981231 mm1981 · driest 0 mm in 198752
March31.7°C31 Mar 1998-21.1°C4 Mar 1982118 mm14 Mar 2010430 mm2010 · driest 19 mm in 200652
April34.4°C17 Apr 2002-10.6°C12 Apr 1976105 mm16 Apr 2007269 mm2007 · driest 14 mm in 199949
May35.0°C20 May 2026-9.4°C9 May 1985135 mm14 May 2006454 mm2006 · driest 19 mm in 199351
June36.1°C30 Jun 20210.6°C9 Jun 1983148 mm13 Jun 1998345 mm1998 · driest 14 mm in 197650
July38.9°C22 Jul 20113.3°C2 Jul 1978106 mm11 Jul 2006292 mm2021 · driest 15 mm in 197450
August40.0°C2 Aug 19750.6°C30 Aug 1982155 mm19 Aug 1991279 mm1991 · driest 3 mm in 199653
September35.6°C8 Sep 2007-5.0°C30 Sep 1978121 mm7 Sep 2008280 mm2008 · driest 4 mm in 197853
October30.6°C29 Oct 2015-8.3°C28 Oct 1976214 mm21 Oct 1996402 mm1996 · driest 9 mm in 199453
November25.6°C5 Nov 1994-21.1°C24 Nov 1989100 mm15 Nov 1995354 mm1983 · driest 19 mm in 201253
December23.9°C7 Dec 1998-27.2°C24 Dec 198988 mm3 Dec 1986229 mm1986 · driest 29 mm in 198052
Typical days per month at GREENLAND, 1991–2020
MonthDays 25°C+Days 30°C+Frost nightsHeavy rain (10 mm+)Snow days
January002937
February002636
March<102345
April2<1124<1
May62240
June165030
July2510030
August237030
September102<130
October1063<1
November<101731
December002745
How often, not how much — every day in GREENLAND’s record sorted by what it was actually like, rather than averaged
MonthWarm & dry daysWet daysWashoutsWeek with 3+ wet daysDaytime mean has ranged
January0%28%11%32%-1.7–3.6°C
February<1%26%11%29%0.2–5.4°C
March3%30%12%39%5.1–9.9°C
April12%33%12%44%11.9–15.9°C
May37%31%11%38%17.9–21.6°C
June62%32%10%40%23.0–26.8°C
July71%29%11%32%26.0–29.5°C
August74%26%9%27%25.7–28.4°C
September58%24%10%27%21.7–24.2°C
October19%28%10%30%14.8–18.1°C
November3%30%11%36%7.6–12.5°C
December<1%30%13%36%1.5–7.0°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1975Each stripe is one year’s mean temperature against the 48-year average. Warmest: 2012. Coolest: 1978.2024

The evidence behind this page

Nearby, measured,
and named.

Place identity
GeoNames 5093259
NOAA station
USC00273626 · GREENLAND
Station distance
6.7 km from the place centre
Climate period
1991–2020
Minimum month coverage
29 usable years
Daylight
Calculated from latitude 43.05°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature
NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 23 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from GREENLAND is what differs

PortsmouthHamptonExeterSeabrookRyeNorth Hampton