Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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
536
CDGM40 PGUM 301611
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
211 AM CHST SUN AUG 31 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR AUGUST 30 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 83 1:17 PM 91 2016 87 -4 87
MINIMUM 74 7:23 AM 65 1983 76 -2 76
AVERAGE 79 82 -3 82
PRECIPITATION (IN)
YESTERDAY 0.62 3.16 1985 0.57 0.05 1.42
MONTH TO DATE 13.04 17.10 -4.06 14.83
SINCE JUN 1 39.53 35.86 3.67 30.34
SINCE JAN 1 55.26 56.07 -0.81 47.21
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 14 17 -3 17
MONTH TO DATE 515 510 5 522
SINCE JUN 1 1549 1604 -55 1599
SINCE JAN 1 4113 4116 -3 4080
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SE (120)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 4.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 9:00 AM
LOWEST 79 2:00 PM
AVERAGE 88
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 91 2009
2016
MINIMUM TEMPERATURE (F) 76 68 1979
SUNRISE AND SUNSET
AUGUST 31 2025........SUNRISE 6:09 AM CHST SUNSET 6:33 PM CHST
SEPTEMBER 1 2025.....SUNRISE 6:09 AM CHST SUNSET 6:32 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$