United States · 1991–2020

Best time to visit
Viola.

September leads for comfortable weather in Viola: typically 28.9°C by day, 15.4°C at night, with 60 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high28.9°C

Typical low15.4°C

Rain in September60 mm

Comfort

September

September · May · October

79climate match

Beach

September

September · July · August

78climate match

Outdoors

October

October · April · March

84climate match

The weakest month is January, scoring 8 against September’s 79 — days reach only 7.1°C, 17° below the 24°C the score treats as ideal, and nights drop to -5°C.

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

87.1° / -5°

Feb

209.7° / -3.2°

Mar

4415.4° / 1.7°

Apr

6420.4° / 6.5°

May

7725.6° / 12.9°

Jun

5531.3° / 18.2°

Jul

4633.9° / 20.6°

Aug

4933.1° / 19.9°

Sep

7928.9° / 15.4°

Oct

7722.2° / 8.8°

Nov

4214° / 1.5°

Dec

117.4° / -3.9°

Monthly climate evidence for Viola — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	7.1°C	-5°C	23 mm	1.8	9 h 50	8	Strong coverage
February	9.7°C	-3.2°C	27 mm	2.4	10 h 45	20	Strong coverage
March	15.4°C	1.7°C	54 mm	4	11 h 50	44	Strong coverage
April	20.4°C	6.5°C	84 mm	5.4	13 h 06	64	Strong coverage
May	25.6°C	12.9°C	112 mm	6.8	14 h 10	77	Strong coverage
June	31.3°C	18.2°C	122 mm	6.4	14 h 44	55	Strong coverage
July	33.9°C	20.6°C	101 mm	5.6	14 h 31	46	Good coverage
August	33.1°C	19.9°C	105 mm	5.7	13 h 36	49	Good coverage
September	28.9°C	15.4°C	60 mm	4	12 h 23	79	Strong coverage
October	22.2°C	8.8°C	66 mm	4.4	11 h 10	77	Strong coverage
November	14°C	1.5°C	43 mm	3.2	10 h 06	42	Strong coverage
December	7.4°C	-3.9°C	30 mm	2.8	9 h 35	11	Strong coverage

Records at NORWICH, 1895–2019
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	26.1°C22 Jan 1943	-27.2°C12 Jan 1912	104 mm17 Jan 2017	130 mm1949 · driest 0 mm in 1986	117
February	31.1°C22 Feb 1996	-29.4°C13 Feb 1905	64 mm3 Feb 2012	143 mm1911 · driest 0 mm in 2001	118
March	35.0°C21 Mar 1916	-21.1°C11 Mar 1948	90 mm29 Mar 1918	265 mm1973 · driest 0 mm in 1911	117
April	36.7°C14 Apr 2006	-10.0°C2 Apr 1936	158 mm14 Apr 1999	269 mm1999 · driest 7 mm in 1950	118
May	40.0°C29 May 1913	-3.3°C1 May 1909	132 mm12 May 2017	328 mm1937 · driest 9 mm in 2004	116
June	43.9°C5 Jun 1933	5.6°C11 Jun 1903	117 mm17 Jun 1975	297 mm1923 · driest 0 mm in 1911	116
July	46.7°C18 Jul 1936	10.6°C3 Jul 1924	122 mm13 Jul 2018	206 mm1948 · driest 1 mm in 1935	117
August	47.2°C12 Aug 1936	7.2°C30 Aug 1915	169 mm24 Aug 2005	439 mm2005 · driest 0 mm in 2000	117
September	43.9°C3 Sep 1947	0.6°C30 Sep 1984	164 mm9 Sep 2016	349 mm1973 · driest 0 mm in 2000	117
October	37.2°C8 Oct 1979	-11.7°C30 Oct 1917	111 mm31 Oct 1998	230 mm2002 · driest 0 mm in 1975	119
November	30.6°C9 Nov 2006	-15.0°C22 Nov 1929	175 mm1 Nov 1998	220 mm1998 · driest 0 mm in 1995	119
December	28.3°C24 Dec 1955	-26.1°C22 Dec 1989	63 mm13 Dec 2015	106 mm1947 · driest 0 mm in 2010	119

Typical days per month at NORWICH, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	23	<1	<1
February	<1	0	18	<1	<1
March	3	<1	11	2	<1
April	7	1	3	3	<1
May	18	7	0	3	0
June	27	19	0	4	0
July	30	25	0	3	0
August	29	23	0	3	0
September	23	13	0	2	0
October	11	3	1	2	0
November	1	<1	11	1	<1
December	0	0	21	1	1

How often, not how much — every day in NORWICH’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	2%	8%	2%	4%	2.7–10.5°C
February	10%	11%	3%	7%	4.5–13.7°C
March	30%	13%	5%	9%	11.3–19.3°C
April	50%	20%	8%	18%	18.2–23.4°C
May	67%	26%	11%	29%	23.2–28.0°C
June	75%	25%	12%	25%	28.4–33.5°C
July	81%	19%	9%	15%	31.6–37.3°C
August	81%	19%	8%	16%	30.9–37.0°C
September	79%	18%	8%	16%	26.6–32.2°C
October	63%	16%	7%	13%	19.6–26.0°C
November	21%	11%	4%	6%	10.9–17.5°C
December	2%	9%	3%	4%	4.7–10.8°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.

1897Each stripe is one year’s mean temperature against the 102-year average. Warmest: 1933. Coolest: 2013.2017

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4281063
NOAA station: USC00145870 · NORWICH
Station distance: 18 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 24 usable years
Daylight: Calculated from latitude 37.48°, 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 NORWICH is what differs

Cheney→Conway Springs→Argonia→Norwich→Milton→Adams→

Or put two places side by side: Viola vs Cheney

Best time to visitViola.

September

September

October

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Viola.

The whole year,
without the guesswork.

Nearby, measured,
and named.