Climatological Report (Daily)
Issued by NWS
Issued by NWS
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
123
CDUS46 KMTR 310835
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
135 AM PDT SUN AUG 31 2025
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR AUGUST 30 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 94 3:48 PM 96 2023 81 13 77
MINIMUM 52 6:10 AM 44 2010 53 -1 52
AVERAGE 73 67 6 65
PRECIPITATION (IN)
YESTERDAY 0.00 0.00
MONTH TO DATE 0.00 T
SINCE OCT 1 16.08 19.88
SINCE JAN 1 8.10 13.84
DEGREE DAYS
HEATING
YESTERDAY 0 0
MONTH TO DATE 7 8
SINCE JUN 1 109 50
SINCE JUL 1 45 13
COOLING
YESTERDAY 8 0
MONTH TO DATE 66 74
SINCE JUN 1 86 288
SINCE JAN 1 103 298
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION S (200)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 4.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 4:00 AM
LOWEST 21 6:00 PM
AVERAGE 59
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 97 2017
MINIMUM TEMPERATURE (F) 53 42 2008
SUNRISE AND SUNSET
AUGUST 31 2025........SUNRISE 6:38 AM PDT SUNSET 7:40 PM PDT
SEPTEMBER 1 2025.....SUNRISE 6:39 AM PDT SUNSET 7:38 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$