United States · 1991–2020

Best time to visit
Grantsboro.

October leads for comfortable weather in Grantsboro: typically 24°C by day, 11.5°C at night, with 107 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high24°C

Typical low11.5°C

Rain in October107 mm

Comfort

October

October · April · May

80climate match

Beach

June

June · July · September

66climate match

Outdoors

April

April · November · March

75climate match

The weakest month is January, scoring 28 against October’s 80 — days reach only 13.5°C, 10° below the 24°C the score treats as ideal, and nights drop to 1.8°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

2813.5° / 1.8°

Feb

3615.2° / 2.6°

Mar

5218.6° / 5.3°

Apr

7623.2° / 9.8°

May

7526.8° / 14.7°

Jun

5130.1° / 19.2°

Jul

3731.6° / 21.4°

Aug

3730.9° / 20.6°

Sep

5528.4° / 17.9°

Oct

8024° / 11.5°

Nov

5519° / 6.1°

Dec

3615.3° / 3.5°

Monthly climate evidence for Grantsboro — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 43 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	13.5°C	1.8°C	101 mm	8.4	13.5°C	10 h 02	28	Strong coverage
February	15.2°C	2.6°C	90 mm	8.6	13.0°C	10 h 51	36	Strong coverage
March	18.6°C	5.3°C	94 mm	8	14.1°C	11 h 52	52	Strong coverage
April	23.2°C	9.8°C	93 mm	7.2	17.1°C	13 h 01	76	Strong coverage
May	26.8°C	14.7°C	112 mm	7.8	21.4°C	13 h 59	75	Strong coverage
June	30.1°C	19.2°C	140 mm	10	25.4°C	14 h 30	51	Strong coverage
July	31.6°C	21.4°C	174 mm	10.9	27.7°C	14 h 18	37	Strong coverage
August	30.9°C	20.6°C	193 mm	11.4	27.8°C	13 h 29	37	Strong coverage
September	28.4°C	17.9°C	179 mm	8.9	25.7°C	12 h 21	55	Strong coverage
October	24°C	11.5°C	107 mm	6.9	21.8°C	11 h 14	80	Strong coverage
November	19°C	6.1°C	100 mm	6.7	17.6°C	10 h 16	55	Strong coverage
December	15.3°C	3.5°C	104 mm	8.8	15.5°C	9 h 48	36	Strong coverage

What has changed

Grantsboro runs -0.1°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

+0.7

Feb

+1.0

Mar

-0.1

Apr

-0.7

May

-0.5

Jun

-0.3

Jul

-0.2

Aug

-0.6

Sep

-0.5

Oct

+0.1

Nov

-0.8

Dec

+1.1

October daytime highs, 2011–2025. Last recorded: 23.0°C.

Records at BAYBORO 3 SW, 1968–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	26.7°C30 Jan 2002	-18.3°C21 Jan 1985	80 mm3 Jan 1992	194 mm1994 · driest 20 mm in 1981	56
February	28.3°C26 Feb 2022	-15.6°C13 Feb 1973	67 mm17 Feb 1998	205 mm2021 · driest 23 mm in 1986	56
March	32.8°C30 Mar 1985	-12.2°C4 Mar 1980	82 mm2 Mar 1994	201 mm2024 · driest 37 mm in 2013	58
April	33.9°C27 Apr 1990	-3.3°C6 Apr 2004	130 mm16 Apr 2007	185 mm2000 · driest 9 mm in 1995	51
May	36.1°C31 May 2019	1.7°C11 May 1986	156 mm29 May 1976	274 mm2003 · driest 24 mm in 2010	53
June	38.9°C10 Jun 1985	6.7°C8 Jun 1977	131 mm24 Jun 2013	290 mm2013 · driest 1 mm in 1978	57
July	37.8°C8 Jul 2010	10.0°C2 Jul 1975	120 mm10 Jul 1997	331 mm1997 · driest 59 mm in 1974	56
August	41.7°C1 Aug 1999	9.4°C19 Aug 1976	235 mm28 Aug 2011	531 mm2011 · driest 37 mm in 1993	54
September	36.7°C1 Sep 1993	4.4°C24 Sep 1981	218 mm30 Sep 1971	400 mm1999 · driest 4 mm in 1986	55
October	35.6°C4 Oct 1986	-3.3°C29 Oct 1976	149 mm23 Oct 1971	411 mm1971 · driest 4 mm in 2000	56
November	31.1°C2 Nov 1996	-8.9°C28 Nov 1996	148 mm22 Nov 2006	259 mm2006 · driest 14 mm in 1981	55
December	27.8°C6 Dec 1998	-20.0°C25 Dec 1989	84 mm18 Dec 2023	208 mm2023 · driest 9 mm in 1988	51

Typical days per month at BAYBORO 3 SW, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	<1	0	13	3
February	1	0	10	3
March	5	<1	5	3
April	12	2	<1	3
May	22	7	0	4
June	28	17	0	4
July	30	25	0	5
August	30	22	0	5
September	26	11	0	4
October	14	2	<1	3
November	3	0	4	3
December	1	0	10	3

How often, not how much — every day in BAYBORO 3 SW’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	11%	27%	11%	29%	10.4–16.1°C
February	18%	28%	11%	31%	12.1–18.0°C
March	35%	26%	11%	26%	16.1–21.0°C
April	62%	22%	10%	18%	21.5–25.3°C
May	71%	27%	12%	30%	25.1–28.6°C
June	70%	30%	14%	40%	28.5–31.3°C
July	65%	35%	16%	47%	30.5–32.9°C
August	65%	35%	17%	43%	29.7–32.4°C
September	73%	27%	13%	27%	27.5–29.9°C
October	69%	21%	9%	20%	22.2–25.3°C
November	37%	22%	9%	21%	17.2–21.4°C
December	16%	25%	10%	25%	12.6–17.8°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.

1969Each stripe is one year’s mean temperature against the 41-year average. Warmest: 2019. Coolest: 1976.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4468622
NOAA station: USC00310576 · BAYBORO 3 SW
Station distance: 2.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 27 usable years
Daylight: Calculated from latitude 35.14°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 43 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 BAYBORO 3 SW is what differs

Bayboro→Oriental→Alliance→Arapahoe→Stonewall→Vandemere→

Or put two places side by side: Grantsboro vs Bayboro

Best time to visitGrantsboro.