Herndon, VA vs Denver, CO

Side-by-side comparison of monthly climate normals (NOAA 1991-2020).

Herndon is warmer than Denver (55.7°F vs 51.4°F annual avg) and wetter than it (43.2 in vs 15.4 in per year). Herndon has a Humid subtropical climate; Denver a Semi-arid (cold) climate.

Herndon, VA

Annual avg
55.7°F
Annual precip
43.2 in
Warmest month
July (87.6°F)
Coldest month
January (25.2°F)
Annual swing
43.3°F
Pleasant months
2 / 12
Humid subtropical Cfa USDA Zone 8a

Denver, CO

Annual avg
51.4°F
Annual precip
15.4 in
Warmest month
July (90.2°F)
Coldest month
January (17.6°F)
Annual swing
43°F
Semi-arid (cold) BSk USDA Zone 7a

Best months to visit each city

Herndon

J
F
M
A
M
J
J
A
S
O
N
D

Denver

J
F
M
A
M
J
J
A
S
O
N
D

Month-by-month comparison

Month Herndon Denver
High Low Precip High Low Precip
January 42.6°F 25.2°F 2.94 in 46.5°F 17.6°F 0.46 in
February 46.1°F 26.7°F 2.61 in 47.5°F 19.3°F 0.53 in
March 54.8°F 33.6°F 3.50 in 56.4°F 27.1°F 1.12 in
April 66.8°F 43.2°F 3.47 in 62.5°F 33.7°F 1.67 in
May 75.0°F 53.0°F 4.72 in 71.7°F 43.4°F 2.29 in
June 83.1°F 61.9°F 4.30 in 84.1°F 52.9°F 1.68 in
July 87.6°F 66.8°F 4.15 in 90.2°F 59.3°F 2.12 in
August 86.3°F 65.2°F 3.53 in 87.9°F 57.2°F 1.83 in
September 79.3°F 57.9°F 3.94 in 80.1°F 48.2°F 1.51 in
October 67.8°F 45.3°F 3.65 in 66.7°F 35.7°F 0.98 in
November 56.5°F 35.6°F 3.13 in 54.8°F 25.5°F 0.70 in
December 46.5°F 29.0°F 3.30 in 45.9°F 17.7°F 0.47 in
Herndon overview
Full climate profile
 Denver overview
Full climate profile