United States · 1991–2020

Best time to visit
Grand Island.

June leads for comfortable weather in Grand Island: typically 25.2°C by day, 13.7°C at night, with 75 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high25.2°C

Typical low13.7°C

Rain in June75 mm

Comfort

June

June · August · September

83climate match

Beach

July

July · August · June

68climate match

Outdoors

May

May · September · June

80climate match

The weakest month is January, scoring 5 against June’s 83 — days reach only 0.4°C, 24° 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

50.4° / -8.5°

Feb

51.3° / -8.4°

Mar

55.8° / -4.4°

Apr

2713.2° / 1.3°

May

6320.3° / 7.9°

Jun

8325.2° / 13.7°

Jul

7427.6° / 16.4°

Aug

8126.8° / 15.4°

Sep

7923.1° / 11.1°

Oct

4316.1° / 5.1°

Nov

129.2° / -0.1°

Dec

53.4° / -4.6°

Monthly climate evidence for Grand Island — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 22 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	0.4°C	-8.5°C	66 mm	11.8	3.0°C	9 h 20	5	Strong coverage
February	1.3°C	-8.4°C	52 mm	9.8	1.3°C	10 h 27	5	Strong coverage
March	5.8°C	-4.4°C	62 mm	9.9	1.3°C	11 h 47	5	Strong coverage
April	13.2°C	1.3°C	79 mm	10.1	3.2°C	13 h 20	27	Strong coverage
May	20.3°C	7.9°C	79 mm	9.7	8.9°C	14 h 38	63	Strong coverage
June	25.2°C	13.7°C	75 mm	9	16.9°C	15 h 20	83	Strong coverage
July	27.6°C	16.4°C	86 mm	8.2	22.2°C	15 h 04	74	Strong coverage
August	26.8°C	15.4°C	70 mm	8.2	23.2°C	13 h 56	81	Strong coverage
September	23.1°C	11.1°C	83 mm	8	20.8°C	12 h 26	79	Strong coverage
October	16.1°C	5.1°C	80 mm	10.3	15.7°C	10 h 57	43	Strong coverage
November	9.2°C	-0.1°C	74 mm	10	10.2°C	9 h 39	12	Strong coverage
December	3.4°C	-4.6°C	70 mm	11.8	6.3°C	9 h 01	5	Strong coverage

Records at NIAGARA FALLS, 1989–2019
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	18.3°C13 Jan 2005	-26.1°C6 Jan 1996	38 mm20 Jan 1995	106 mm1998 · driest 31 mm in 2016	30
February	21.1°C26 Feb 2000	-25.0°C17 Feb 2015	31 mm15 Feb 1990	124 mm1990 · driest 26 mm in 2004	30
March	27.2°C22 Mar 2012	-22.8°C12 Mar 1993	39 mm8 Mar 2009	127 mm1991 · driest 11 mm in 2013	30
April	33.9°C28 Apr 1990	-10.0°C6 Apr 2016	47 mm7 Apr 2017	153 mm2017 · driest 27 mm in 1995	30
May	33.9°C31 May 2018	-2.2°C4 May 2004	48 mm12 May 2000	198 mm2017 · driest 21 mm in 2007	30
June	35.0°C27 Jun 2005	3.3°C4 Jun 1998	48 mm24 Jun 1994	192 mm2013 · driest 26 mm in 2016	30
July	36.1°C13 Jul 2005	6.7°C2 Jul 2001	102 mm20 Jul 2013	190 mm2014 · driest 14 mm in 2001	30
August	35.0°C7 Aug 2001	6.7°C21 Aug 2000	65 mm10 Aug 2009	129 mm2009 · driest 16 mm in 2002	30
September	33.9°C26 Sep 2017	-3.3°C29 Sep 2000	76 mm9 Sep 2004	155 mm1996 · driest 46 mm in 2009	29
October	29.4°C5 Oct 2007	-4.4°C25 Oct 2002	49 mm29 Oct 2015	169 mm1995 · driest 20 mm in 2000	30
November	22.2°C2 Nov 2016	-13.9°C30 Nov 2013	70 mm2 Nov 1999	141 mm2018 · driest 18 mm in 2012	30
December	22.2°C15 Dec 2015	-21.7°C27 Dec 1993	43 mm1 Dec 2006	168 mm1990 · driest 34 mm in 1998	30

Typical days per month at NIAGARA FALLS, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	24	2	15
February	0	0	22	1	12
March	<1	0	21	2	8
April	1	0	11	3	2
May	7	1	<1	3	0
June	17	5	0	3	0
July	25	8	0	3	0
August	23	6	0	2	0
September	11	2	<1	3	0
October	2	0	4	3	<1
November	0	0	15	2	4
December	0	0	22	2	11

How often, not how much — every day in NIAGARA FALLS’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	0%	38%	5%	51%	-3.7–3.3°C
February	<1%	34%	5%	45%	-2.7–4.5°C
March	2%	31%	5%	42%	3.3–9.0°C
April	11%	35%	9%	48%	11.2–15.6°C
May	38%	31%	9%	38%	17.6–23.3°C
June	63%	30%	9%	35%	23.3–27.1°C
July	74%	27%	9%	31%	25.2–29.7°C
August	73%	26%	7%	24%	25.0–28.6°C
September	57%	26%	9%	32%	21.0–25.2°C
October	19%	33%	9%	43%	13.9–18.3°C
November	2%	34%	7%	45%	6.3–12.2°C
December	0%	38%	7%	54%	-0.5–6.4°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.

1990Each stripe is one year’s mean temperature against the 28-year average. Warmest: 2016. Coolest: 2014.2018

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5119019
NOAA station: USC00305840 · NIAGARA FALLS
Station distance: 5.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 27 usable years
Daylight: Calculated from latitude 43.03°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 22 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 NIAGARA FALLS is what differs

Chippawa→Grandyle Village→Black Creek Village→La Salle→Love Canal→Pletchers Corners→

Or put two places side by side: Grand Island vs Chippawa

Best time to visitGrand Island.

June

July

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Grand Island.

The whole year,
without the guesswork.

Nearby, measured,
and named.