United States · 1991–2020

Best time to visit
Roswell.

June leads for comfortable weather in Roswell: typically 27.3°C by day, 10.5°C at night, with 21 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high27.3°C

Typical low10.5°C

Rain in June21 mm

Comfort

June

June · May · September

80climate match

Beach

July

July · June · August

66climate match

Outdoors

October

October · May · April

82climate match

The weakest month is January, scoring 5 against June’s 80 — days reach only 3.4°C, 21° 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

53.4° / -5°

Feb

117.6° / -3.6°

Mar

3513.9° / -0.6°

Apr

5517.9° / 2.1°

May

7922.9° / 7.2°

Jun

8027.3° / 10.5°

Jul

6633.3° / 13.5°

Aug

6533° / 12.1°

Sep

7427.6° / 7.4°

Oct

5919.1° / 1.7°

Nov

189.6° / -2.9°

Dec

53.6° / -5.4°

Monthly climate evidence for Roswell — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	3.4°C	-5°C	34 mm	7.4	9 h 15	5	Good coverage
February	7.6°C	-3.6°C	17 mm	4.6	10 h 25	11	Good coverage
March	13.9°C	-0.6°C	24 mm	6.4	11 h 47	35	Good coverage
April	17.9°C	2.1°C	24 mm	5.4	13 h 22	55	Good coverage
May	22.9°C	7.2°C	37 mm	6.7	14 h 42	79	Strong coverage
June	27.3°C	10.5°C	21 mm	4.1	15 h 26	80	Strong coverage
July	33.3°C	13.5°C	7 mm	1.7	15 h 08	66	Good coverage
August	33°C	12.1°C	5 mm	1.2	13 h 59	65	Good coverage
September	27.6°C	7.4°C	10 mm	2	12 h 27	74	Good coverage
October	19.1°C	1.7°C	19 mm	4.3	10 h 56	59	Good coverage
November	9.6°C	-2.9°C	23 mm	5.6	9 h 36	18	Good coverage
December	3.6°C	-5.4°C	31 mm	6.8	8 h 56	5	Good coverage

Records at PARMA EXP STN, 1922–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	18.3°C9 Jan 1953	-36.1°C22 Jan 1930	43 mm26 Jan 1999	133 mm1970 · driest 0 mm in 1985	94
February	19.4°C26 Feb 1995	-31.7°C7 Feb 1989	18 mm8 Feb 1953	70 mm1958 · driest 1 mm in 1923	93
March	28.9°C30 Mar 1978	-16.7°C1 Mar 1993	30 mm31 Mar 1996	78 mm1983 · driest 0 mm in 1923	95
April	34.4°C25 Apr 1946	-10.6°C1 Apr 1936	22 mm29 Apr 1933	85 mm1978 · driest 0 mm in 1949	95
May	37.8°C25 May 2001	-5.6°C11 May 1970	37 mm12 May 1958	107 mm1998 · driest 0 mm in 1940	97
June	41.1°C19 Jun 1940	-0.6°C26 Jun 1976	29 mm19 Jun 1975	78 mm2020 · driest 1 mm in 1973	96
July	43.3°C13 Jul 2002	0.6°C30 Jul 1948	31 mm9 Jul 1965	38 mm1965 · driest 0 mm in 1988	93
August	41.7°C13 Aug 1929	1.1°C24 Aug 1925	40 mm14 Aug 1979	91 mm1968 · driest 0 mm in 2000	94
September	39.4°C2 Sep 2022	-9.4°C25 Sep 1926	39 mm14 Sep 1959	86 mm1959 · driest 0 mm in 1974	94
October	35.0°C2 Oct 1997	-12.8°C30 Oct 2019	31 mm4 Oct 1923	78 mm1956 · driest 0 mm in 1987	94
November	25.6°C2 Nov 1924	-22.8°C15 Nov 1955	21 mm30 Nov 1993	76 mm1926 · driest 1 mm in 1929	95
December	20.0°C11 Dec 1939	-37.2°C25 Dec 1924	29 mm24 Dec 1968	78 mm2005 · driest 1 mm in 1989	95

Typical days per month at PARMA EXP STN, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	26	<1	3
February	0	0	22	<1	1
March	<1	0	17	<1	<1
April	3	<1	9	<1	0
May	12	4	<1	<1	0
June	20	11	0	<1	0
July	30	25	0	<1	0
August	30	25	0	0	0
September	22	11	<1	<1	0
October	5	1	11	<1	0
November	0	0	21	<1	<1
December	0	0	25	<1	3

How often, not how much — every day in PARMA EXP STN’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	0%	23%	2%	24%	-1.6–6.3°C
February	0%	20%	1%	20%	3.6–10.7°C
March	9%	20%	1%	21%	10.7–16.0°C
April	37%	17%	1%	15%	15.7–21.7°C
May	65%	17%	2%	17%	20.7–26.4°C
June	82%	14%	2%	10%	24.9–30.1°C
July	96%	4%	<1%	1%	31.4–35.7°C
August	95%	5%	<1%	3%	30.1–34.7°C
September	86%	8%	1%	5%	24.1–29.5°C
October	45%	14%	1%	11%	16.9–22.0°C
November	2%	21%	2%	23%	7.2–12.4°C
December	<1%	22%	2%	24%	0.6–6.7°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.

1923Each stripe is one year’s mean temperature against the 80-year average. Warmest: 1934. Coolest: 1985.2020

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5605852
NOAA station: USC00106844 · PARMA EXP STN
Station distance: 6.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 22 usable years
Daylight: Calculated from latitude 43.75°, 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 PARMA EXP STN is what differs

Parma→Notus→Adrian→Rookstool Corner→Sand Hollow→Owyhee→

Or put two places side by side: Roswell vs Parma

Best time to visitRoswell.