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Comparative Climate
 
Alaska
click here to view a precipitation map of alaska
  Pan Evaporation 
 

Standard daily pan evaporation is measured using the four-foot diameter Class A evaporation pan. The pan water level reading is adjusted when precipitation is measure to obtain the actual evaporation. Most Class A pans are installed aboveground, allowing effects such as radiation on the side walls and heat exchnges with the pan material. These effects tend to increase the evaporation totals. The amounts can then be adjusted by multiplying the totals b 0.70 or 0.80 to more closely estimate the evaporation from naturally existing urfaces such as a shallow lake, wet soil or other moist natural surfaces.

Many stations do not measure pan evaportation during winter months. A "0.00" total indicates no measuement is taken.

Stations marked with an asterisk * have estimated totals computed from meteorological measurements using a form of the Penman equation.

 
period of record
jan
feb
mar
apr
may
jun
july
aug
sept
oct
nov
dec
year
Central 2
1962-2002
M
M
M
M
M
3.97
4.00
2.43
2.19
M
M
M
12.59
Matanuska AES
1917-2002
M
M
M
M
4.26
4.43
3.92
3.02
1.80
M
M
M
17.43
McGrath WB Airport
1939-2002
M
M
M
M
4.20
4.42
3.64
2.29
1.40
M
M
M
15.95
McKinley Park
1949-2002
M
M
M
M
M
3.00
2.55
1.74
0.53
M
M
M
7.82
Old Edgerton
1970-1996
M
M
M
M
3.31
4.56
4.16
3.04
1.65
M
M
M
16.72
Palmer AAES
1949-1998
M
M
M
M
4.44
4.71
4.12
2.96
1.75
M
M
M
17.98
College Univ Exp Stn
1931-2002
M
M
M
M
4.25
5.04
4.56
2.82
1.38
M
M
M
18.05
 
  State Extremes
 
 * Also at earlier dates at the same time or other places
 
date or year
location
value
Record Highest Temp
27-Jun-15
Fort Yukon
100.00
Record Lowest Temp
23-Jan-71
Prospect Creek Camp
-80.00
Highest Average Annual Temp
Annette WB Ap
45.80
Lowest Average Annual Temp
Barter Island
9.80
Consecutive Days Max >= 70
3 occurrences
2 stations
48 days
Consecutive Days Min <= 32
Aug 55-Jun 56
Barrow
321 days
Record Maximum Annual Precip
1976
McLeod Harbor
332.29
Record Minimum Annual Precip
1935
Barrow
1.61
Record Maximum 24-hour Precip
12-Oct-82
Angoon
15.20
Highest Average Annual Precip
Little Port Walter
224.90
Lowest Average Annual Precip
Kuparuk
4.26
Consecutive Days Measurable Precip
Nov 93-Jan 94
Little Port Walter
69 days
Consecutive Days with no Measurable Precip
?
Record Maximum Winter Snowfall
1952-53
Thompson Pass
974.50
Record Maximum 1-Day Snowfall
29-Dec-55
Thompson Pass
62.00
Highest Average Annual Snowfall
Thompson Pass
551.50
 
  Precipitation
(mean monthly & annual number of hrs with measurable precip with % of hrs and maximum 1-hr totals)
 

* = Less than 1/2 hour

Maximum 1-hour totals are based on data from top of the hour. Maximum 60-minute totals will be greater.
 
period of record
jan
feb
mar
apr
may
jun
july
aug
sept
oct
nov
dec
year
hour
inches
Anchorage
1962-1999
27
39
32
28
23
37
52
65
73
58
38
39
511
6
0.54
Annette
1962-1999
188
171
167
153
125
98
97
105
150
218
200
203
1875
21
1.22
Cold Bay
1962-1999
73
71
73
70
67
65
76
81
112
109
107
85
989
11
2.03
Fairbanks
1962-1999
30
24
23
17
20
38
45
55
39
48
46
40
425
5
0.73
Juneau
1962-1978
163
180
169
136
153
119
147
146
185
226
167
180
1971
23
0.49
King Salmon
1962-1999
48
38
46
48
48
53
64
85
81
66
52
51
680
8
0.88
Kodiak
1984-1999
164
122
134
154
119
128
95
88
120
121
108
147
1500
17
0.61
McGrath
1962-1999
42
32
39
35
35
47
61
80
69
57
53
52
602
7
0.98
St. Paul Island
1962-1999
83
70
61
56
56
48
63
86
90
104
104
88
909
10
0.46
Yakutat
1962-1999
200
196
202
184
170
131
148
167
218
283
222
228
2349
27
1.98
 
  Sunshine Days
(mean monthly & annual % of possible sunshine)
 

Only the first order stations record possible sunshine.

For more information click here on Western States, Alaska or Hawaii and Pacific Islands
 
jan
feb
mar
apr
may
jun
july
aug
sept
oct
nov
dec
annual
Anchorage
34
42
50
50
50
46
43
39
39
36
32
27
41
Juneau
32
32
37
39
39
34
31
32
26
19
23
20
30
Nome
40
55
54
54
50
43
37
32
36
34
31
34
42