United States · 1991–2020

Best time to visit
Grayson.

September leads for comfortable weather in Grayson: typically 26.7°C by day, 11.9°C at night, with 86 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high26.7°C

Typical low11.9°C

Rain in September86 mm

Comfort

September

September · May · June

75climate match

Beach

August

August · July · June

65climate match

Outdoors

October

October · April · September

78climate match

The weakest month is January, scoring 5 against September’s 75 — days reach only 6.1°C, 18° below the 24°C the score treats as ideal, and nights drop to -5.9°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

56.1° / -5.9°

Feb

58° / -4.8°

Mar

2113.8° / -1.4°

Apr

5120.5° / 3.7°

May

6924.7° / 9.3°

Jun

6728.7° / 14.6°

Jul

5830.1° / 16.8°

Aug

6330° / 16.2°

Sep

7526.7° / 11.9°

Oct

6120.5° / 4.7°

Nov

2814.1° / -0.9°

Dec

57.7° / -3.9°

Monthly climate evidence for Grayson — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	6.1°C	-5.9°C	78 mm	9.1	9 h 46	5	Good coverage
February	8°C	-4.8°C	72 mm	9.3	10 h 42	5	Good coverage
March	13.8°C	-1.4°C	102 mm	9.8	11 h 50	21	Good coverage
April	20.5°C	3.7°C	108 mm	10.4	13 h 08	51	Good coverage
May	24.7°C	9.3°C	120 mm	10.6	14 h 14	69	Good coverage
June	28.7°C	14.6°C	111 mm	10.3	14 h 49	67	Good coverage
July	30.1°C	16.8°C	123 mm	9.8	14 h 35	58	Good coverage
August	30°C	16.2°C	107 mm	8.3	13 h 39	63	Good coverage
September	26.7°C	11.9°C	86 mm	7	12 h 23	75	Good coverage
October	20.5°C	4.7°C	68 mm	7.7	11 h 08	61	Good coverage
November	14.1°C	-0.9°C	79 mm	8.1	10 h 02	28	Good coverage
December	7.7°C	-3.9°C	94 mm	9.8	9 h 30	5	Good coverage

Records at GRAYSON 2 E, 1996–2014
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.6°C23 Jan 1999	-23.9°C25 Jan 2014	46 mm23 Jan 2006	134 mm1999 · driest 39 mm in 2003	18
February	26.1°C27 Feb 2000	-20.6°C6 Feb 2007	63 mm19 Feb 2000	140 mm2003 · driest 21 mm in 2002	18
March	31.7°C21 Mar 2012	-17.8°C4 Mar 2014	106 mm20 Mar 2002	237 mm1997 · driest 31 mm in 2003	18
April	32.8°C3 Apr 2010	-7.8°C11 Apr 1997	57 mm28 Apr 2002	258 mm2011 · driest 28 mm in 2001	18
May	33.9°C31 May 2011	-2.2°C5 May 2005	123 mm3 May 2010	254 mm2003 · driest 26 mm in 1999	18
June	40.0°C29 Jun 2012	4.4°C2 Jun 2003	49 mm4 Jun 2008	198 mm2003 · driest 25 mm in 2012	18
July	40.0°C8 Jul 2012	8.3°C2 Jul 2008	96 mm27 Jul 2012	219 mm2012 · driest 65 mm in 2005	19
August	38.9°C1 Aug 1999	7.8°C31 Aug 1999	92 mm21 Aug 2004	225 mm2006 · driest 14 mm in 1998	19
September	37.2°C3 Sep 2011	1.1°C24 Sep 2012	66 mm9 Sep 2004	221 mm2004 · driest 4 mm in 2008	19
October	34.4°C9 Oct 2007	-6.7°C23 Oct 1997	59 mm19 Oct 2004	169 mm2006 · driest 14 mm in 2000	18
November	28.3°C3 Nov 2004	-12.2°C23 Nov 2000	51 mm8 Nov 1996	171 mm2003 · driest 20 mm in 2012	18
December	24.4°C7 Dec 1998	-17.8°C21 Dec 2004	61 mm17 Dec 2000	158 mm2007 · driest 52 mm in 2006	17

Typical days per month at GRAYSON 2 E, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	<1	0	26	2	5
February	<1	0	24	2	4
March	3	<1	20	4	2
April	9	2	9	4	<1
May	16	5	<1	4	0
June	26	13	0	4	0
July	29	17	0	4	0
August	30	17	0	3	0
September	20	7	0	2	0
October	9	1	6	2	0
November	1	0	19	3	<1
December	0	0	24	3	4

How often, not how much — every day in GRAYSON 2 E’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	1%	29%	8%	34%	2.8–8.8°C
February	2%	33%	6%	40%	3.7–10.4°C
March	15%	32%	12%	39%	10.5–17.2°C
April	38%	35%	12%	49%	18.7–22.6°C
May	55%	34%	14%	46%	22.9–26.9°C
June	65%	34%	13%	39%	27.0–29.7°C
July	69%	32%	13%	41%	28.5–32.0°C
August	73%	27%	10%	26%	28.2–31.5°C
September	74%	23%	8%	24%	24.6–29.1°C
October	43%	25%	7%	28%	18.7–22.8°C
November	16%	27%	9%	34%	11.2–16.7°C
December	1%	32%	11%	39%	3.7–10.4°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.

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4293311
NOAA station: USC00153389 · GRAYSON 2 E
Station distance: 3.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 17 usable years
Daylight: Calculated from latitude 38.33°, 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 GRAYSON 2 E is what differs

Beech Grove→Coalton→Garner→Glenwood→Hopewell→Hunnewell→

Or put two places side by side: Grayson vs Beech Grove

Best time to visitGrayson.