United States · 1991–2020

Best time to visit
Green Tree.

September leads for comfortable weather in Green Tree: typically 25.5°C by day, 13.6°C at night, with 82 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high25.5°C

Typical low13.6°C

Rain in September82 mm

Comfort

September

September · May · June

82climate match

Beach

July

July · August · June

75climate match

Outdoors

October

October · May · April

78climate match

The weakest month is January, scoring 5 against September’s 82 — days reach only 3.7°C, 20° 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

53.7° / -5.4°

Feb

55.2° / -4.7°

Mar

1510.6° / -0.7°

Apr

4717.8° / 4.8°

May

7422.9° / 10.5°

Jun

7427.3° / 15.9°

Jul

6229.5° / 18.5°

Aug

6828.8° / 17.5°

Sep

8225.5° / 13.6°

Oct

5818.6° / 7.2°

Nov

2611.9° / 1.6°

Dec

55.9° / -2.4°

Monthly climate evidence for Green Tree — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	3.7°C	-5.4°C	82 mm	10.6	9 h 35	5	Strong coverage
February	5.2°C	-4.7°C	68 mm	9.3	10 h 36	5	Strong coverage
March	10.6°C	-0.7°C	81 mm	9.9	11 h 49	15	Strong coverage
April	17.8°C	4.8°C	83 mm	10.6	13 h 13	47	Strong coverage
May	22.9°C	10.5°C	88 mm	10.6	14 h 24	74	Strong coverage
June	27.3°C	15.9°C	92 mm	9.4	15 h 02	74	Strong coverage
July	29.5°C	18.5°C	95 mm	8.6	14 h 47	62	Strong coverage
August	28.8°C	17.5°C	88 mm	7.9	13 h 46	68	Strong coverage
September	25.5°C	13.6°C	82 mm	7.3	12 h 25	82	Strong coverage
October	18.6°C	7.2°C	71 mm	8.3	11 h 03	58	Strong coverage
November	11.9°C	1.6°C	70 mm	8.3	9 h 53	26	Strong coverage
December	5.9°C	-2.4°C	71 mm	9.7	9 h 18	5	Strong coverage

Records at EMSWORTH L/D OHIO RVR, 1991–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	22.2°C31 Jan 2002	-25.0°C21 Jan 1994	61 mm12 Jan 2018	182 mm1996 · driest 27 mm in 1997	35
February	25.6°C25 Feb 2017	-23.3°C20 Feb 2015	93 mm13 Feb 2019	198 mm2019 · driest 17 mm in 2009	35
March	29.4°C31 Mar 1998	-18.9°C7 Mar 2015	51 mm27 Mar 2026	149 mm2011 · driest 5 mm in 2006	35
April	31.1°C19 Apr 2013	-6.7°C4 Apr 2013	66 mm12 Apr 2024	200 mm2024 · driest 35 mm in 2016	35
May	34.4°C31 May 2007	-1.7°C1 May 2018	53 mm29 May 2000	185 mm2019 · driest 37 mm in 2002	35
June	37.2°C26 Jun 1999	5.0°C3 Jun 2025	152 mm18 Jun 2009	179 mm2009 · driest 12 mm in 1992	35
July	38.9°C15 Jul 1995	9.4°C7 Jul 1992	102 mm29 Jul 1999	216 mm1992 · driest 21 mm in 1995	35
August	38.9°C13 Aug 1995	8.3°C30 Aug 2025	75 mm7 Aug 2000	164 mm2007 · driest 16 mm in 2025	34
September	35.6°C11 Sep 2013	2.8°C30 Sep 1992	104 mm30 Sep 2015	212 mm2018 · driest 19 mm in 2017	35
October	32.8°C2 Oct 2019	-3.3°C20 Oct 1992	60 mm30 Oct 2012	157 mm2019 · driest 9 mm in 1991	35
November	26.7°C3 Nov 2016	-11.1°C25 Nov 2005	50 mm12 Nov 2022	163 mm1997 · driest 20 mm in 2012	35
December	23.9°C5 Dec 1999	-16.7°C22 Dec 2008	70 mm1 Dec 2010	141 mm2012 · driest 22 mm in 1992	35

Typical days per month at EMSWORTH L/D OHIO RVR, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	21	3	3
February	<1	0	19	2	2
March	<1	0	15	3	<1
April	4	<1	4	3	0
May	12	3	<1	3	0
June	23	9	0	3	0
July	27	14	0	3	0
August	27	13	0	3	0
September	16	5	0	2	0
October	5	<1	1	2	0
November	<1	0	11	2	<1
December	0	0	19	2	2

How often, not how much — every day in EMSWORTH L/D OHIO RVR’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%	35%	8%	48%	-0.2–6.6°C
February	1%	31%	8%	40%	1.5–8.8°C
March	9%	32%	9%	42%	7.7–13.7°C
April	26%	36%	11%	45%	15.2–19.9°C
May	51%	33%	10%	42%	20.3–25.9°C
June	67%	30%	10%	35%	25.3–28.9°C
July	72%	28%	11%	30%	27.5–31.0°C
August	74%	26%	10%	24%	27.0–30.2°C
September	70%	25%	8%	26%	23.4–27.8°C
October	34%	26%	8%	28%	16.5–20.8°C
November	8%	27%	8%	32%	9.1–15.0°C
December	<1%	31%	7%	40%	3.1–9.3°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.

1992Each stripe is one year’s mean temperature against the 33-year average. Warmest: 1998. Coolest: 2014.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5191925
NOAA station: USC00362574 · EMSWORTH L/D OHIO RVR
Station distance: 10.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 40.41°, 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 EMSWORTH L/D OHIO RVR is what differs

Pittsburgh→Franklin Park→Glenshaw→Kennedy Township→Bellevue→Carnegie→

Or put two places side by side: Green Tree vs Pittsburgh

Best time to visitGreen Tree.