United States · 1991–2020

Best time to visit
Sonora.

October leads for comfortable weather in Sonora: typically 26.7°C by day, 11.2°C at night, with 59 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high26.7°C

Typical low11.2°C

Rain in October59 mm

Comfort

October

October · April · March

80climate match

Beach

July

July · June · August

81climate match

Outdoors

November

November · March · February

89climate match

The weakest month is January, scoring 45 against October’s 80 — nights drop to -1.1°C, and days reach only 16.1°C, 8° 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

4516.1° / -1.1°

Feb

5818.8° / 1°

Mar

7722.4° / 5.3°

Apr

7927.1° / 10.1°

May

7130.6° / 15.9°

Jun

5433.6° / 20.2°

Jul

5234.8° / 21.3°

Aug

4935° / 20.9°

Sep

6631.6° / 17°

Oct

8026.7° / 11.2°

Nov

7120.8° / 5°

Dec

4716.4° / -0.5°

Monthly climate evidence for Sonora — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	16.1°C	-1.1°C	28 mm	3	10 h 22	45	Good coverage
February	18.8°C	1°C	31 mm	3	11 h 03	58	Strong coverage
March	22.4°C	5.3°C	37 mm	2.9	11 h 54	77	Good coverage
April	27.1°C	10.1°C	47 mm	3.3	12 h 52	79	Strong coverage
May	30.6°C	15.9°C	67 mm	4.5	13 h 41	71	Strong coverage
June	33.6°C	20.2°C	63 mm	4.4	14 h 07	54	Strong coverage
July	34.8°C	21.3°C	40 mm	3.1	13 h 56	52	Strong coverage
August	35°C	20.9°C	56 mm	4.3	13 h 15	49	Good coverage
September	31.6°C	17°C	71 mm	3.7	12 h 19	66	Strong coverage
October	26.7°C	11.2°C	59 mm	4.2	11 h 22	80	Good coverage
November	20.8°C	5°C	33 mm	3.1	10 h 34	71	Good coverage
December	16.4°C	-0.5°C	22 mm	2.7	10 h 11	47	Good coverage

Records at SONORA, 1902–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	30.6°C19 Jan 2000	-17.2°C12 Jan 1963	60 mm19 Jan 1994	113 mm2017 · driest 0 mm in 2002	80
February	35.6°C19 Feb 1986	-22.2°C2 Feb 1951	64 mm22 Feb 1958	115 mm1989 · driest 0 mm in 1974	78
March	36.1°C18 Mar 1908	-11.7°C4 Mar 2002	73 mm26 Mar 2007	111 mm2007 · driest 0 mm in 1956	81
April	38.9°C25 Apr 1996	-7.2°C16 Apr 1991	84 mm6 Apr 1912	208 mm1915 · driest 0 mm in 1988	83
May	41.7°C22 May 1984	0.0°C5 May 1991	98 mm27 May 1957	323 mm1957 · driest 0 mm in 1988	80
June	42.8°C28 Jun 1980	5.6°C3 Jun 1970	107 mm18 Jun 2000	207 mm1914 · driest 0 mm in 1990	79
July	42.8°C27 Jul 2016	9.4°C14 Jul 1990	140 mm13 Jul 2025	249 mm1990 · driest 0 mm in 1970	81
August	42.2°C20 Aug 1986	7.2°C31 Aug 1915	158 mm12 Aug 1972	318 mm1972 · driest 0 mm in 2000	77
September	41.7°C5 Sep 2000	-1.7°C25 Sep 1989	201 mm1 Sep 1976	479 mm1993 · driest 0 mm in 1989	81
October	38.9°C3 Oct 1951	-7.8°C19 Oct 1989	131 mm13 Oct 1957	217 mm1957 · driest 0 mm in 2010	79
November	33.3°C17 Nov 2025	-12.8°C11 Nov 1950	70 mm4 Nov 1913	203 mm1913 · driest 0 mm in 1915	72
December	32.2°C24 Dec 1955	-16.1°C25 Dec 1983	52 mm21 Dec 1991	111 mm1984 · driest 0 mm in 1915	77

Typical days per month at SONORA, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	2	0	20	<1
February	4	<1	13	1
March	11	2	6	1
April	21	8	2	2
May	26	18	0	2
June	28	25	0	2
July	29	28	0	1
August	30	28	0	2
September	27	20	0	2
October	20	8	1	2
November	6	<1	7	1
December	1	0	18	<1

How often, not how much — every day in SONORA’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	32%	9%	2%	5%	13.1–19.3°C
February	47%	11%	3%	6%	15.7–22.1°C
March	72%	9%	3%	4%	20.0–26.8°C
April	83%	13%	6%	9%	24.9–29.9°C
May	84%	16%	8%	13%	28.3–32.9°C
June	86%	14%	6%	9%	31.5–35.5°C
July	88%	12%	5%	10%	32.7–36.7°C
August	87%	13%	5%	9%	32.7–36.8°C
September	85%	14%	7%	12%	29.6–33.6°C
October	83%	13%	6%	10%	24.5–29.0°C
November	61%	10%	4%	7%	18.3–23.5°C
December	32%	8%	2%	4%	13.3–19.6°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.

1903Each stripe is one year’s mean temperature against the 56-year average. Warmest: 1954. Coolest: 1903.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5531255
NOAA station: USC00418449 · SONORA
Station distance: 2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 22 usable years
Daylight: Calculated from latitude 30.57°, 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.

Validated places to explore

Tokyo→Bangkok→Reykjavik→Lisbon→

Best time to visitSonora.