Weather Averages for Vienna, VA

Weather Averages for
Vienna, VA

Latitude: 38°43'N, Longitude: 77°11'W, Elevation: 21.0 m, Distance: 7.75 km

	Unit	Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average temperature over 37 years	°C	13	0	2	7	12	17	22	25	24	20	13	8	2
Average high temperature over 37 years	°C	18	5	7	12	18	23	28	30	29	26	20	14	7
Average low temperature over 37 years	°C	7	-4	-2	1	6	11	16	19	18	14	7	2	-2
Highest recorded temperature over 37 years	°C	40	23	24	31	35	36	37	40	40	37	33	29	25
Lowest recorded temperature over 37 years	°C	-23	-23	-18	-18	-7	-1	3	7	6	1	-4	-9	-20
Average number of rainy days over 37 years	days	116	10	9	11	10	11	10	10	10	8	8	9	10
Average precipitation over 37 years	cm	107.2	7.4	7.4	9.7	8.1	9.7	8.9	9.9	10.7	9.7	8.4	8.4	8.6
Average dew point over 10 years	°C	6	-5	-5	-1	4	11	16	19	18	15	7	2	-3
Average number of days with thunderstorms over 37 years	days	37	1	1	1	3	5	7	8	6	3	1	1	-
Average number of days with fog over 37 years	days	196	13	12	13	13	19	18	20	21	20	18	15	14
Average morning relative humidity over 10 years	%	76.3	70.3	70.2	70	72.7	78	76.6	78.6	82.6	85.4	83.7	76.4	70.4
Average evening relative humidity over 10 years	%	51.8	51.1	49	45.9	45.6	51.9	52.3	55.1	57.7	57.7	52.8	51.6	51.1
Average wind speed over 12 years	km/h	17.7	6.4	6.4	6.4	4.8	4.8	3.2	3.2	3.2	3.2	4.8	6.4	4.8
Average snowfall over 37 years	cm	53.1	14.7	17.0	9.1	0.3	-	-	-	-	-	0.3	2.3	8.6
Most rain reported in a day over 37 years	cm	23.1	4.3	5.1	6.9	6.9	6.6	23.1	8.4	10.9	11.7	8.1	7.9	7.4
Most rain reported in a month over 37 years	cm	157.0	22.4	16.8	21.3	22.1	23.9	41.1	22.1	23.9	34.0	20.3	18.5	18.5
Least rain reported in a month over 37 years	cm	75.4	1.0	1.0	1.8	0.5	2.3	2.0	1.8	0.8	2.0	0.3	1.0	1.0
Heating degree days over 37 years	days	4513	981	803	620	318	109	12	-	1	41	267	519	842
Cooling degree days over 37 years	days	1245	-	-	3	18	81	235	380	341	161	23	3	-
Average number of days below -12.5°C over 37 years	days	6	3	1	1	-	-	-	-	-	-	-	-	1
Average number of days above 22°C over 12 years	days	37	-	1	4	10	21	28	26	14	3	1	-	108
Most snow reported in a month over 37 years	cm	172.2	88.9	61.7	66.5	5.1	-	-	-	-	-	7.1	27.4	63.0
Average possibility of clouds over 10 years	%	54.2	58.8	58.5	55.9	54.5	56.1	52.5	55.8	52.5	50.7	43.3	54.3	57.1
Average number of snowy days over 37 years	days	10	3	2	1	1	-	-	-	-	-	-	1	2
Average number of days below -1°C over 37 years	days	100	25	21	14	4	1	-	-	-	-	3	11	21
Most snow reported in a day over 37 years	cm	197.9	46.2	32.5	5.1	-	-	-	-	-	7.1	27.4	32.0	47.5
Deepest snow cover reported over 37 years	cm	61.0	61.0	55.9	22.9	2.5	-	-	-	-	-	-	27.9	33.0
Average wet bulb point over 10 years	°C	10	-1	0	3	8	14	18	21	20	16	10	6	0

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

Latitude: 38°56'N, Longitude: 77°7'W, Elevation: 44.5 m, Distance: 3.86 km

Latitude: 38°54'N, Longitude: 77°6'W, Elevation: 20.1 m, Distance: 4.05 km

Latitude: 38°51'N, Longitude: 77°2'W, Elevation: 3.0 m, Distance: 6.56 km

Latitude: 38°43'N, Longitude: 77°10'W, Elevation: 27.1 m, Distance: 7.86 km

Back to current weather in Vienna, VA »

Weather Averages Vienna, VA