climigo

Connecticut

When to go?

The best months are May–September. Avoid January–February (freezing).

Climate zones

New JerseyRhode IslandMassachusettsNew YorkHartfordHartfordHartfordNew HavenNew HavenNew HavenStamfordStamfordStamfordBridgeportBridgeportBridgeportGreenwichGreenwichGreenwich

Mean maximum and minimum temperature and mean monthly precipitation of the season (the mean of its three months), ERA5-Land 1996–2025, at about 9 km resolution: colours are in levels (the same as the city scale) and smaller details are not real.

What is the climate like?

Area mean indicative, over the whole territory

Temperature and rain

January 2°−7° snow likely
February 4°−6° snow likely
March 9°−2°
April 15°3°
May 21°9°
June 26°14°
July 29°17°
August 28°16°
September 24°12°
October 18°6°
November 11°1°
December 5°−4°

Monthly min and max temperature (°C)

−10°−5°0°5°10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDec−7.0 · 2.2 °CJanuary: −7.0 · 2.2 °C−6.0 · 3.8 °CFebruary: −6.0 · 3.8 °C−2.4 · 8.6 °CMarch: −2.4 · 8.6 °C3.0 · 15.2 °CApril: 3.0 · 15.2 °C8.5 · 20.8 °CMay: 8.5 · 20.8 °C13.8 · 25.6 °CJune: 13.8 · 25.6 °C17.0 · 28.7 °CJuly: 17.0 · 28.7 °C16.0 · 27.8 °CAugust: 16.0 · 27.8 °C12.2 · 24.0 °CSeptember: 12.2 · 24.0 °C6.2 · 17.6 °COctober: 6.2 · 17.6 °C0.6 · 11.0 °CNovember: 0.6 · 11.0 °C−3.8 · 5.3 °CDecember: −3.8 · 5.3 °C

Monthly min and max temperature (°C)

Jan −7.0 – 2.2 °C
Feb −6.0 – 3.8 °C
Mar −2.4 – 8.6 °C
Apr 3.0 – 15.2 °C
May 8.5 – 20.8 °C
Jun 13.8 – 25.6 °C
Jul 17.0 – 28.7 °C
Aug 16.0 – 27.8 °C
Sep 12.2 – 24.0 °C
Oct 6.2 – 17.6 °C
Nov 0.6 – 11.0 °C
Dec −3.8 – 5.3 °C

How much it rains

January 97 mm9 d
February 87 mm8 d
March 113 mm9 d
April 107 mm9 d
May 106 mm10 d
June 111 mm9 d
July 110 mm9 d
August 113 mm8 d
September 114 mm7 d
October 120 mm8 d
November 88 mm8 d
December 118 mm9 d

Rain days and how much water

0102030 dJanFebMarAprMayJunJulAugSepOctNovDec97 mm · 9 rain days · 11 mm a dayJanuary: 97 mm · 9 rain days · 11 mm a day87 mm · 8 rain days · 11 mm a dayFebruary: 87 mm · 8 rain days · 11 mm a day113 mm · 9 rain days · 13 mm a dayMarch: 113 mm · 9 rain days · 13 mm a day107 mm · 9 rain days · 12 mm a dayApril: 107 mm · 9 rain days · 12 mm a day106 mm · 10 rain days · 11 mm a dayMay: 106 mm · 10 rain days · 11 mm a day111 mm · 9 rain days · 12 mm a dayJune: 111 mm · 9 rain days · 12 mm a day110 mm · 9 rain days · 12 mm a dayJuly: 110 mm · 9 rain days · 12 mm a day113 mm · 8 rain days · 14 mm a dayAugust: 113 mm · 8 rain days · 14 mm a day114 mm · 7 rain days · 16 mm a daySeptember: 114 mm · 7 rain days · 16 mm a day120 mm · 8 rain days · 15 mm a dayOctober: 120 mm · 8 rain days · 15 mm a day88 mm · 8 rain days · 11 mm a dayNovember: 88 mm · 8 rain days · 11 mm a day118 mm · 9 rain days · 13 mm a dayDecember: 118 mm · 9 rain days · 13 mm a day

Rain days and how much water

Jan 97 mm9 d
Feb 87 mm8 d
Mar 113 mm9 d
Apr 107 mm9 d
May 106 mm10 d
Jun 111 mm9 d
Jul 110 mm9 d
Aug 113 mm8 d
Sep 114 mm7 d
Oct 120 mm8 d
Nov 88 mm8 d
Dec 118 mm9 d

Bars: length = rain days, thickness = mm on a rain day, area = the month's rain. 3 mm a day7 mm a day15 mm a day

Colour = the month's rain: 103060100160250400mm

Daylight hours

January 9 h 30
February 10 h 38
March 11 h 54
April 13 h 19
May 14 h 30
June 15 h 09
July 14 h 53
August 13 h 52
September 12 h 30
October 11 h 08
November 9 h 53
December 9 h 12

Mean daylight hours over the whole territory.

Snow on the ground

January 7 cm
February 11 cm
March 6 cm
April 1 cm
May –
June –
July –
August –
September –
October –
November –
December 3 cm

Mean snow depth on the ground (cm)

01325 cmJanFebMarAprMayJunJulAugSepOctNovDec7 cmJanuary: 7 cm11 cmFebruary: 11 cm6 cmMarch: 6 cm1 cmApril: 1 cm0 cmMay: 0 cm0 cmJune: 0 cm0 cmJuly: 0 cm0 cmAugust: 0 cm0 cmSeptember: 0 cm0 cmOctober: 0 cm0 cmNovember: 0 cm3 cmDecember: 3 cm

Mean snow depth on the ground (cm)

Jan 7 cm
Feb 11 cm
Mar 6 cm
Apr 1 cm
May 0 cm
Jun 0 cm
Jul 0 cm
Aug 0 cm
Sep 0 cm
Oct 0 cm
Nov 0 cm
Dec 3 cm

Spatial mean over the whole area, weighted by area (cosine of the latitude), not by population: indicative only, since the climate varies a lot within an area (coasts, plains, mountains). Look at the cities for the weather you will find.

Cities