United States · 1991–2020

Best time to visit
Norwich.

June leads for comfortable weather in Norwich: typically 25.5°C by day, 12.6°C at night, with 88 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune
Typical high25.5°C
Typical low12.6°C
Rain in June88 mm
Comfort

June

June · August · September

78climate match
Beach

July

July · August · June

64climate match
Outdoors

September

September · May · June

77climate match

The weakest month is January, scoring 5 against June’s 78days reach only -1.4°C, 25° 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
5-1.4° / -11.2°
Feb
50.7° / -10.3°
Mar
56° / -5.2°
Apr
3113.9° / 1°
May
6421.1° / 7.4°
Jun
7825.5° / 12.6°
Jul
7128° / 15.5°
Aug
7827.1° / 14.7°
Sep
7722.7° / 10.6°
Oct
3815.1° / 4.2°
Nov
87.9° / -1.1°
Dec
51.3° / -7°
Monthly climate evidence for Norwich — daylight is calculated from latitude, everything else is measured
MonthDayNightRainWet daysDaylightComfortCoverage
January-1.4°C-11.2°C67 mm7.79 h 155Strong coverage
February0.7°C-10.3°C60 mm6.710 h 255Strong coverage
March6°C-5.2°C73 mm7.311 h 475Strong coverage
April13.9°C1°C75 mm8.413 h 2231Strong coverage
May21.1°C7.4°C85 mm9.714 h 4264Strong coverage
June25.5°C12.6°C88 mm9.415 h 2678Strong coverage
July28°C15.5°C100 mm8.915 h 0871Strong coverage
August27.1°C14.7°C82 mm813 h 5978Strong coverage
September22.7°C10.6°C84 mm7.412 h 2777Strong coverage
October15.1°C4.2°C99 mm8.510 h 5638Strong coverage
November7.9°C-1.1°C73 mm7.99 h 368Strong coverage
December1.3°C-7°C81 mm8.38 h 565Strong coverage

What has changed

Norwich runs +1.3°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
+1.5
Feb
+1.3
Mar
+1.1
Apr
+1.0
May
+1.3
Jun
+0.3
Jul
+0.8
Aug
+0.8
Sep
+2.1
Oct
+1.7
Nov
+1.3
Dec
+2.2
June daytime highs, 20112025. Last recorded: 25.9°C.
Records at HANOVER, 1893–2026
MonthRecord highRecord lowWettest dayWettest / driest monthYears
January17.8°C6 Jan 2007-36.7°C5 Jan 190448 mm8 Jan 1998168 mm1958 · driest 7 mm in 1980133
February18.9°C21 Feb 2018-40.0°C16 Feb 194388 mm21 Feb 1996161 mm2008 · driest 2 mm in 1987133
March30.0°C31 Mar 1998-30.0°C4 Mar 1950104 mm20 Mar 1896235 mm1896 · driest 0 mm in 1981132
April33.9°C28 Apr 1990-17.8°C1 Apr 192359 mm7 Apr 1924155 mm1933 · driest 12 mm in 1941133
May35.6°C20 May 1989-6.7°C2 May 190375 mm31 May 1984263 mm1984 · driest 4 mm in 2019133
June36.7°C15 Jun 1988-1.7°C5 Jun 191074 mm1 Jun 1952252 mm2006 · driest 1 mm in 2018133
July38.3°C9 Jul 19881.1°C18 Jul 202692 mm17 Jul 1911247 mm1915 · driest 0 mm in 2004134
August39.4°C2 Aug 19750.6°C31 Aug 1965101 mm1 Aug 1983259 mm1983 · driest 12 mm in 2025133
September36.1°C9 Sep 2002-5.6°C29 Sep 191482 mm17 Sep 1999226 mm1938 · driest 1 mm in 2014132
October30.6°C7 Oct 1963-11.7°C29 Oct 200194 mm24 Oct 1923288 mm2005 · driest 3 mm in 1979133
November26.1°C2 Nov 1950-24.4°C26 Nov 193897 mm3 Nov 1927220 mm1927 · driest 11 mm in 2012132
December24.4°C7 Dec 1998-38.3°C31 Dec 191761 mm17 Dec 2000195 mm1973 · driest 14 mm in 2013133
Typical days per month at HANOVER, 1991–2020
MonthDays 25°C+Days 30°C+Frost nightsHeavy rain (10 mm+)Snow days
January002928
February002726
March<102524
April2<11431
May92220
June175020
July2510030
August237020
September102<130
October1073<1
November001922
December002736

The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 81); on 2011–2025 it is September (89). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in HANOVER’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%8%30%-4.6–0.9°C
February0%26%7%27%-3.0–3.0°C
March2%28%8%31%2.3–8.9°C
April14%31%9%36%10.4–15.9°C
May42%33%9%40%17.7–23.3°C
June61%33%10%39%23.0–26.8°C
July69%31%10%33%25.8–29.6°C
August70%29%10%29%24.2–28.4°C
September50%27%10%29%19.8–24.2°C
October18%26%9%28%13.0–17.5°C
November1%30%9%34%4.8–10.1°C
December<1%29%8%31%-2.9–3.4°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.

1894Each stripe is one year’s mean temperature against the 125-year average. Warmest: 2024. Coolest: 1904.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity
GeoNames 5239319
NOAA station
USC00273850 · HANOVER
Station distance
2.1 km from the place centre
Climate period
1991–2020
Minimum month coverage
27 usable years
Daylight
Calculated from latitude 43.72°, mid-month, sunrise to sunset including refraction. Not a station measurement.
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 HANOVER is what differs

HanoverWilderEast WilderEtnaHanover CenterLeBruns Mobile Home Park