United States · 1991–2020

Best time to visit
Christmas.

April leads for comfortable weather in Christmas: typically 26.6°C by day, 8.8°C at night, with 8 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortApril

Typical high26.6°C

Typical low8.8°C

Rain in April8 mm

Comfort

April

April · October · March

80climate match

Beach

September

September · August · October

74climate match

Outdoors

November

November · March · February

89climate match

The weakest month is July, scoring 40 against April’s 80 — days average 37.7°C, 14° above 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

4615.9° / 0.8°

Feb

5518.2° / 2.6°

Mar

7421.6° / 5.1°

Apr

8026.6° / 8.8°

May

7231.6° / 13.5°

Jun

4737.8° / 19°

Jul

4037.7° / 21.8°

Aug

4436.8° / 20.9°

Sep

6134.1° / 17.6°

Oct

7828.7° / 11.5°

Nov

7020.7° / 4.6°

Dec

4515.3° / 0.7°

Monthly climate evidence for Christmas — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	15.9°C	0.8°C	41 mm	4.1	10 h 11	46	Good coverage
February	18.2°C	2.6°C	46 mm	4.6	10 h 57	55	Strong coverage
March	21.6°C	5.1°C	30 mm	3.5	11 h 53	74	Strong coverage
April	26.6°C	8.8°C	8 mm	1.6	12 h 57	80	Good coverage
May	31.6°C	13.5°C	9 mm	1.6	13 h 51	72	Good coverage
June	37.8°C	19°C	5 mm	1	14 h 19	47	Good coverage
July	37.7°C	21.8°C	41 mm	5.3	14 h 08	40	Good coverage
August	36.8°C	20.9°C	42 mm	5.8	13 h 22	44	Good coverage
September	34.1°C	17.6°C	34 mm	3.7	12 h 20	61	Good coverage
October	28.7°C	11.5°C	23 mm	2.9	11 h 18	78	Good coverage
November	20.7°C	4.6°C	25 mm	2.6	10 h 25	70	Strong coverage
December	15.3°C	0.7°C	33 mm	4.2	9 h 59	45	Strong coverage

What has changed

Christmas runs +0.4°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

+0.6

Feb

+0.7

Mar

+1.2

Apr

+0.8

May

-0.3

Jun

+1.5

Jul

-0.8

Aug

0.0

Sep

-0.5

Oct

+1.3

Nov

+0.3

Dec

+0.3

April daytime highs, 2011–2025. Last recorded: 27.8°C.

Records at SAN CARLOS RSVR, 1900–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	28.3°C19 Jan 1971	-11.7°C8 Jan 1971	72 mm11 Jan 1993	268 mm1993 · driest 0 mm in 2011	104
February	32.2°C24 Feb 1904	-11.7°C4 Feb 2011	55 mm8 Feb 1994	128 mm1905 · driest 0 mm in 1924	108
March	38.3°C21 Mar 2026	-7.8°C23 Mar 1923	86 mm23 Mar 1954	153 mm1954 · driest 0 mm in 1984	108
April	40.0°C24 Apr 1939	-4.4°C10 Apr 2020	45 mm9 Apr 1935	85 mm1905 · driest 0 mm in 1993	108
May	45.0°C29 May 1910	-0.6°C3 May 1938	50 mm16 May 1993	68 mm1992 · driest 0 mm in 2013	107
June	46.7°C26 Jun 1994	5.0°C4 Jun 1927	34 mm29 Jun 1938	40 mm1940 · driest 0 mm in 2010	107
July	46.7°C1 Jul 1994	10.0°C24 Jul 2010	66 mm23 Jul 1941	141 mm1921 · driest 0 mm in 1995	103
August	46.7°C25 Aug 1985	7.2°C16 Aug 1976	74 mm21 Aug 1907	249 mm1907 · driest 0 mm in 1924	103
September	43.3°C1 Sep 1950	3.3°C11 Sep 1925	57 mm28 Sep 1941	92 mm1941 · driest 0 mm in 1956	104
October	40.0°C1 Oct 2024	-4.4°C31 Oct 2019	74 mm2 Oct 1983	151 mm1972 · driest 0 mm in 1973	104
November	32.2°C6 Nov 1909	-8.9°C21 Nov 1921	56 mm19 Nov 1940	137 mm1978 · driest 0 mm in 1999	104
December	27.8°C19 Dec 2024	-11.7°C29 Dec 1903	76 mm18 Dec 1978	217 mm1965 · driest 0 mm in 1996	107

Typical days per month at SAN CARLOS RSVR, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	<1	0	13	2
February	2	0	6	2
March	10	<1	2	1
April	20	8	<1	<1
May	27	21	0	<1
June	28	28	0	<1
July	29	28	0	1
August	30	29	0	1
September	28	25	0	1
October	24	14	0	<1
November	6	<1	3	<1
December	<1	0	14	1

How often, not how much — every day in SAN CARLOS RSVR’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	15%	14%	4%	12%	13.0–18.1°C
February	39%	14%	4%	14%	15.4–21.6°C
March	63%	12%	4%	10%	18.5–25.1°C
April	86%	6%	1%	3%	23.8–29.3°C
May	95%	4%	<1%	2%	29.4–34.0°C
June	97%	3%	<1%	2%	35.4–39.5°C
July	81%	19%	5%	17%	36.3–39.5°C
August	80%	20%	5%	17%	34.8–38.7°C
September	88%	13%	3%	8%	32.1–36.4°C
October	88%	9%	3%	6%	26.1–31.0°C
November	58%	10%	3%	6%	18.3–23.7°C
December	14%	14%	5%	12%	13.2–17.9°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.

1904Each stripe is one year’s mean temperature against the 81-year average. Warmest: 1934. Coolest: 1975.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5289754
NOAA station: USC00027480 · SAN CARLOS RSVR
Station distance: 24.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 20 usable years
Daylight: Calculated from latitude 33.06°, 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 SAN CARLOS RSVR is what differs

San Carlos→Peridot→Hayden→Winkelman→Coolidge Dam→Hayden Junction→

Or put two places side by side: Christmas vs San Carlos

Best time to visitChristmas.