Weather Averages for Allentown, PA

Weather Averages for
Allentown, PA

Latitude: 40°39'N, Longitude: 75°26'W, Elevation: 118.3 m, Distance: 2.43 km

	Unit	Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average temperature over 48 years	°C	11	-2	-1	3	10	16	21	23	22	18	12	6	0
Average high temperature over 48 years	°C	16	1	3	8	16	21	26	29	27	23	17	11	4
Average low temperature over 48 years	°C	5	-6	-6	-1	3	9	15	17	16	12	6	1	-4
Highest recorded temperature over 48 years	°C	40	22	24	28	33	36	37	40	37	37	32	27	22
Lowest recorded temperature over 48 years	°C	-26	-26	-21	-18	-8	-1	3	8	5	0	-6	-11	-22
Average number of rainy days over 50 years	days	125	11	10	11	12	12	11	10	10	9	8	10	11
Average number of days above 27°C over 48 years	days	16	-	-	-	-	1	3	7	4	1	-	-	-
Average precipitation over 48 years	cm	112.0	8.1	7.4	9.1	9.4	10.4	8.9	10.9	10.9	9.9	7.6	9.7	9.1
Average dew point over 48 years	°C	5	-7	-6	-3	2	8	13	16	16	12	6	0	-5
Most recorded rainfall over 48 years	cm	172.0	21.3	13.7	18.3	25.7	26.9	21.8	26.4	30.7	22.6	19.1	24.6	20.1
Least recorded rainfall over 48 years	cm	75.7	1.8	2.3	2.5	1.5	0.3	0.8	1.0	2.0	2.3	0.3	1.8	1.0
Average number of days with thunderstorms over 48 years	days	31	-	-	1	2	4	6	7	6	3	1	1	-
Average number of days with fog over 48 years	days	186	14	12	13	12	16	16	18	20	19	17	15	14
Average morning relative humidity over 48 years	%	80	77	76	76	75	78	79	82	86	88	87	82	79
Average evening relative humidity over 48 years	%	55	62	57	52	48	51	52	52	55	57	55	60	64
Average wind speed over 48 years	km/h	17.7	20.9	22.5	25.7	16.1	14.5	14.5	12.9	12.9	12.9	14.5	19.3	19.3
Average number of days below -1.5°C over 48 years	days	122	28	24	20	6	-	-	-	-	-	4	14	25
Average number of days below -17.5°C over 30 years	days	2.1	1.2	0.5	-	-	-	-	-	-	-	-	-	0.3
Average snowfall over 50 years	cm	79.5	21.3	22.6	14.7	1.8	-	-	-	-	-	0.3	3.3	15.5
Average number of days above 14.5°C over 48 years	days	173	-	-	3	11	24	29	31	31	27	15	3	-
Average number of clear days over 50 years	days	93	7	7	8	7	7	8	8	9	9	10	7	7
Most rain reported in a day over 49 years	cm	15.0	6.1	5.3	7.6	6.3	8.1	8.9	10.7	10.7	15.0	9.4	8.6	6.9
Most rain reported in a month over 49 years	cm	172.0	21.3	13.7	18.3	25.7	26.9	21.8	26.4	30.7	22.6	19.1	24.6	20.1
Least rain reported in a month over 49 years	cm	75.7	1.8	2.5	2.5	1.5	0.3	0.8	1.0	2.0	2.3	0.5	1.8	1.0
Heating degree days over 30 years	days	5785	1190	1000	794	459	183	10	-	8	82	373	657	1029
Cooling degree days over 30 years	days	773	-	-	-	-	38	142	282	231	73	7	-	-
Average possibility of sunshine over 9 years	%	53	47	49	53	48	54	63	55	61	58	57	51	45
Average number of cloudy days over 50 years	days	161	16	13	15	14	13	11	11	11	12	12	15	17
Average number of partly cloudy days over 50 years	days	111	8	8	8	9	11	11	12	11	9	9	8	7
Average number of days below -15°C over 48 years	days	6	3	2	-	-	-	-	-	-	-	-	-	1
Most snow reported in a month over 49 years	cm	189.0	90.2	74.9	77.5	34.0	-	-	-	-	-	3.6	19.8	72.1

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

Latitude: 40°39'N, Longitude: 75°25'W, Elevation: 117.0 m, Distance: 2.76 km

Latitude: 40°48'N, Longitude: 75°37'W, Elevation: 124.1 m, Distance: 9.71 km

Latitude: 40°14'N, Longitude: 75°26'W, Elevation: 73.2 m, Distance: 15.88 km

Latitude: 40°15'N, Longitude: 75°40'W, Elevation: 78.0 m, Distance: 16.38 km

Back to current weather in Allentown, PA »

Weather Averages Allentown, PA