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
722
CDUS46 KSEW 110830
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
130 AM PDT MON AUG 11 2025
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 10 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 88 553 PM 98 1981 78 10 77
MINIMUM 61 430 AM 46 1954 58 3 58
AVERAGE 75 68 7 68
PRECIPITATION (IN)
YESTERDAY 0.00 0.38 2019 0.03 -0.03 0.00
MONTH TO DATE 0.16 0.23 -0.07 0.00
SINCE OCT 1 27.93 36.99 -9.06 33.65
SINCE JAN 1 14.53 21.05 -6.52 16.50
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 2.3 0.3
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 2 3 -1 2
SINCE JUN 1 117 152 -35 141
SINCE JUL 1 23 34 -11 9
COOLING
YESTERDAY 10 4 6 3
MONTH TO DATE 22 40 -18 53
SINCE JUN 1 183 165 18 236
SINCE JAN 1 186 175 11 243
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION N (20)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 8.0
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 73 600 AM
LOWEST 31 600 PM
AVERAGE 52
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 96 2014
MINIMUM TEMPERATURE (F) 58 46 1954
SUNRISE AND SUNSET
AUGUST 11 2025........SUNRISE 601 AM PDT SUNSET 827 PM PDT
AUGUST 12 2025........SUNRISE 602 AM PDT SUNSET 825 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$