Viewing Station: VA-HV-11 : Rockville 5.1 W
Apr 13, 2020 - May 29, 20251,844 Total Observations
View:

Climatology

Precipitation Normals Comparison

Month-To-Date: 7.48"
May 1-29, 2025(29 of 29 days covered by obs)
NOAA Normal
3.84"
Departure from Normal
3.64" : 195% of Normal
Year-To-Date: 22.17"
Jan 1 to May 29, 2025(146 of 149 days covered by obs)
NOAA Normal
17.16"
Departure from Normal
5.01" : 129% of Normal
Water Year-To-Date: 27.00"
Oct 1, 2024 to May 29, 2025(238 of 241 days covered by obs)
NOAA Normal
27.85"
Departure from Normal
-0.85" : 97% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.30
3.24
0.06
Feb
2.80
2.75
0.05
Mar
3.82
3.69
0.13
Apr
3.40
3.35
0.05
May
4.11
4.13
-0.02
Jun
4.23
4.01
0.22
Jul
4.32
4.07
0.25
Aug
4.09
4.20
-0.11
Sep
4.45
4.30
0.15
Oct
3.76
3.60
0.16
Nov
3.39
3.21
0.18
Dec
3.54
3.53
0.01
45.21
44.08
1.13