United States · 1991–2020

Best time to visit
Merino.

May leads for comfortable weather in Merino: typically 23.5°C by day, 7.5°C at night, with 51 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high23.5°C

Typical low7.5°C

Rain in May51 mm

Comfort

May

May · September · June

80climate match

Beach

August

August · June · July

70climate match

Outdoors

October

October · May · April

82climate match

The weakest month is January, scoring 5 against May’s 80 — days reach only 5.5°C, 18° below the 24°C the score treats as ideal, and nights drop to -9.6°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

55.5° / -9.6°

Feb

88.3° / -7.5°

Mar

3213.4° / -3.2°

Apr

5417.9° / 1.3°

May

8023.5° / 7.5°

Jun

7229° / 12.7°

Jul

6033° / 16.1°

Aug

7131.5° / 14.8°

Sep

7926.9° / 9.1°

Oct

5919.1° / 1.6°

Nov

2311.3° / -4.5°

Dec

55.4° / -9.6°

Monthly climate evidence for Merino — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	5.5°C	-9.6°C	7 mm	1.8	9 h 34	5	Good coverage
February	8.3°C	-7.5°C	9 mm	1.8	10 h 36	8	Good coverage
March	13.4°C	-3.2°C	18 mm	2.5	11 h 49	32	Good coverage
April	17.9°C	1.3°C	30 mm	4.2	13 h 13	54	Good coverage
May	23.5°C	7.5°C	51 mm	6.4	14 h 24	80	Good coverage
June	29°C	12.7°C	64 mm	6.2	15 h 03	72	Good coverage
July	33°C	16.1°C	70 mm	6.3	14 h 48	60	Good coverage
August	31.5°C	14.8°C	48 mm	5.8	13 h 47	71	Good coverage
September	26.9°C	9.1°C	35 mm	4.2	12 h 25	79	Good coverage
October	19.1°C	1.6°C	32 mm	3.5	11 h 03	59	Good coverage
November	11.3°C	-4.5°C	13 mm	2.2	9 h 52	23	Good coverage
December	5.4°C	-9.6°C	8 mm	1.8	9 h 18	5	Good coverage

Records at STERLING, 1909–2010
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	21.7°C21 Jan 2005	-33.9°C17 Jan 1930	31 mm8 Jan 1939	49 mm1939 · driest 0 mm in 1999	101
February	25.0°C9 Feb 1954	-34.4°C5 Feb 1982	19 mm28 Feb 1918	37 mm1934 · driest 0 mm in 1954	101
March	30.0°C30 Mar 2010	-29.4°C3 Mar 1960	45 mm19 Mar 1984	212 mm1920 · driest 0 mm in 1999	101
April	33.3°C18 Apr 1987	-19.4°C2 Apr 1975	54 mm23 Apr 1929	139 mm1922 · driest 3 mm in 2002	98
May	38.9°C30 May 2003	-5.6°C14 May 1924	78 mm29 May 1975	164 mm1987 · driest 7 mm in 1974	100
June	43.3°C28 Jun 1990	-1.7°C3 Jun 1919	79 mm4 Jun 1985	210 mm1992 · driest 4 mm in 2001	101
July	42.2°C2 Jul 1990	1.7°C6 Jul 1910	65 mm27 Jul 1963	267 mm1998 · driest 3 mm in 1952	101
August	40.6°C5 Aug 1960	0.0°C1 Aug 1913	124 mm15 Aug 1968	150 mm1968 · driest 1 mm in 1970	100
September	39.4°C10 Sep 1979	-10.0°C30 Sep 1985	49 mm1 Sep 1992	108 mm1924 · driest 0 mm in 1956	100
October	36.1°C7 Oct 1910	-21.1°C29 Oct 1917	49 mm15 Oct 1916	107 mm1969 · driest 0 mm in 1934	100
November	30.0°C1 Nov 1950	-25.0°C12 Nov 1911	48 mm4 Nov 1922	66 mm1922 · driest 0 mm in 1989	99
December	23.3°C17 Dec 1939	-37.2°C22 Dec 1989	27 mm21 Dec 2006	59 mm1913 · driest 0 mm in 1928	99

Typical days per month at STERLING, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	28	<1	2
February	0	0	25	<1	2
March	2	<1	23	<1	1
April	6	<1	11	<1	<1
May	14	6	1	2	0
June	23	14	<1	2	0
July	29	24	0	2	0
August	28	21	0	2	0
September	19	11	<1	1	<1
October	8	2	10	1	<1
November	1	0	24	<1	1
December	0	0	28	<1	3

How often, not how much — every day in STERLING’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%	6%	<1%	<1%	-0.5–8.4°C
February	4%	7%	<1%	2%	2.5–11.4°C
March	16%	12%	2%	8%	7.5–15.8°C
April	38%	17%	5%	14%	13.7–20.4°C
May	56%	25%	7%	28%	19.3–24.7°C
June	73%	23%	7%	23%	25.2–31.2°C
July	79%	21%	6%	18%	29.7–34.4°C
August	81%	18%	4%	15%	29.0–32.8°C
September	76%	14%	3%	9%	22.9–28.6°C
October	51%	10%	3%	6%	16.1–22.3°C
November	12%	7%	1%	3%	6.9–15.1°C
December	<1%	7%	<1%	2%	0.2–8.3°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.

1910Each stripe is one year’s mean temperature against the 93-year average. Warmest: 1934. Coolest: 1924.2009

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5579786
NOAA station: USC00057950 · STERLING
Station distance: 20.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 17 usable years
Daylight: Calculated from latitude 40.48°, 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 STERLING is what differs

Sterling→Iliff→Atwood→Padroni→Balzac→Beta→

Or put two places side by side: Merino vs Sterling

Best time to visitMerino.

May

August

October

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Merino.

The whole year,
without the guesswork.

Nearby, measured,
and named.