Weather Averages for Allegheny, PA

Weather Averages for
Allegheny, PA

Latitude: 40°30'N, Longitude: 80°13'W, Elevation: 350.5 m, Distance: 6.91 km

	Unit	Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average temperature over 48 years	°C	10	-2	-1	3	10	15	20	22	21	17	11	5	0
Average high temperature over 48 years	°C	15	1	3	8	16	21	26	28	27	23	17	10	3
Average low temperature over 48 years	°C	5	-6	-5	-1	4	9	14	16	16	12	6	1	-3
Highest recorded temperature over 48 years	°C	39	23	20	28	31	32	36	39	37	36	31	27	23
Lowest recorded temperature over 48 years	°C	-30	-30	-24	-18	-10	-3	1	5	3	0	-8	-18	-24
Average number of rainy days over 41 years	days	153	16	14	16	14	13	11	11	10	10	10	13	16
Average number of days above 27°C over 48 years	days	9	-	-	-	-	-	2	4	3	1	-	-	-
Average precipitation over 48 years	cm	94.0	7.1	6.1	8.6	8.1	9.1	9.7	9.7	8.4	7.1	5.8	7.1	7.1
Average dew point over 43 years	°C	4	-7	-6	-2	2	7	13	15	15	11	5	0	-5
Most recorded rainfall over 48 years	cm	132.6	16.0	15.2	15.5	19.3	16.8	26.2	22.1	20.1	15.2	20.8	27.9	21.6
Least recorded rainfall over 48 years	cm	68.1	2.0	1.3	2.8	1.3	3.0	1.5	4.1	1.3	0.8	0.5	2.3	1.0
Average number of days with thunderstorms over 48 years	days	35	-	-	2	3	5	7	7	6	3	1	1	-
Average number of days with fog over 48 years	days	180	14	12	13	11	15	16	18	21	18	15	13	14
Average morning relative humidity over 43 years	%	79	76	75	76	73	76	79	82	85	85	81	78	77
Average evening relative humidity over 43 years	%	55	64	60	54	49	50	51	53	54	54	53	60	65
Average wind speed over 43 years	km/h	17.7	20.9	19.3	20.9	20.9	17.7	16.1	14.5	14.5	16.1	17.7	19.3	20.9
Average number of days below -1.5°C over 48 years	days	120	27	23	20	8	1	-	-	-	-	4	14	24
Average number of days below -17.5°C over 30 years	days	4.2	2.1	1.3	0.1	-	-	-	-	-	-	-	-	0.7
Average snowfall over 41 years	cm	109.5	28.7	23.6	22.1	4.3	0.3	-	-	-	-	1.0	8.4	21.1
Average number of days above 14.5°C over 48 years	days	174	-	-	4	12	23	29	31	31	26	14	4	-
Average number of clear days over 41 years	days	58	3	3	4	5	5	5	5	7	7	8	4	3
Most rain reported in a day over 45 years	cm	9.1	3.0	5.8	4.6	4.1	5.8	7.9	7.6	7.9	5.3	9.1	4.6	7.1
Most rain reported in a month over 45 years	cm	132.6	16.0	15.2	15.5	19.3	16.8	26.2	22.1	20.1	15.2	20.8	28.2	21.6
Least rain reported in a month over 45 years	cm	68.1	2.0	1.3	2.8	1.3	3.0	1.5	4.1	2.0	0.8	0.5	2.3	1.0
Heating degree days over 30 years	days	5968	1206	1016	794	462	214	36	6	14	100	400	681	1039
Cooling degree days over 30 years	days	654	-	-	-	-	44	123	227	184	67	9	-	-
Average possibility of sunshine over 41 years	%	45	32	36	43	46	50	56	57	55	55	51	36	28
Average number of cloudy days over 41 years	days	204	22	19	20	17	17	13	13	13	13	14	20	23
Average number of partly cloudy days over 41 years	days	103	6	6	7	8	9	12	13	11	10	9	6	5
Average number of days below -15°C over 48 years	days	9	4	3	-	-	-	-	-	-	-	-	-	2
Most snow reported in a month over 45 years	cm	194.8	102.1	61.5	86.6	20.6	7.9	-	-	-	-	21.6	35.3	53.8

Check weather averages for nearby locations (some locations might offer more data):

Latitude: 40°39'N, Longitude: 79°59'W, Elevation: 374.9 m, Distance: 7.66 km

Latitude: 40°39'N, Longitude: 79°56'W, Elevation: 0.0 m, Distance: 8.00 km

Latitude: 40°22'N, Longitude: 80°23'W, Elevation: 0.0 m, Distance: 13.08 km

Latitude: 40°10'N, Longitude: 79°52'W, Elevation: 232.3 m, Distance: 13.92 km

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Weather Averages Allegheny, PA