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> 2003 Annual Climate Summaries
Casper 2003 Annual Summary
Lander 2003 Annual Summary
Riverton 2003 Annual
Summary
2003 ANNUAL SUMMARY FOR
CASPER, WYOMING
For the year 2003, Casper Wyoming was slightly warmer than normal, slightly
wetter than normal, with below normal snowfall. This is based on comparing
averages of the daily values with the 30 year normals from 1971-2000.
TEMPERATURE
Even though the year 2003 was warmer than normal, four months during the
year were colder than normal. The yearly average for 2003 was 46.3 degrees,
which was 0.8 degrees above the 30 year normal of 45.5 degrees. Compared with
the POR (Period of Record - 1940-2003), 2003 was 0.8 degrees above the average
of 45.5 degrees.
|
Month |
Feb |
Jun |
Sep |
Nov |
|
Average |
22.2 |
59.5 |
55.3 |
29.5 |
|
30yr Normal |
27.2 |
63.2 |
58.3 |
32.6 |
|
Dep/Normal |
-5.0 |
-3.7 |
-3.0 |
-3.1 |
February had the greatest departure from normal with 5 degrees below
normal.
|
Year |
|
2000 |
2001 |
2002 |
2003 |
|
Temperature |
45.7 |
47.0 |
44.4 |
46.3 |
|
30yr Norm |
45.5 |
45.5 |
45.5 |
45.5 |
|
Dep/Norm |
+0.2 |
+1.5 |
-1.1 |
+0.8 |
PRECIPITATION
The year 2003 received 13.11 inches of precipitation, which was 0.10 inches
above the 30 year normal of 13.01 inches. Compared with the POR average, the
year was 1.19 inches above the long term average. June had the greatest
monthly departure from normal with 4.71 inches, which was 3.28 inches above
the 30 year normal of 1.43. Compared with the POR average, June was 3.28
inches above normal.
2003 in Casper was noticeably wetter than any of the past 4 years.
|
Year |
|
2000 |
2001 |
2002 |
2003 |
|
Precipitation |
10.70 |
6.76 |
7.05 |
13.11 |
|
30yr Norm |
13.01 |
13.01 |
13.01 |
13.01 |
|
Dep/Norm |
-2.31 |
-6.25 |
-5.96 |
+0.10 |
SNOWFALL
For the year, 47.6 inches of snow fell in Casper. This was 16.7 inches
below the 30 year normal of 64.3 inches. Compared to the POR average of 58.1
inches, this was 10.5 inches below normal. October was the snowiest month in
2003 with 21.0 inches of snowfall.
|
Year |
|
2000 |
2001 |
2002 |
2003 |
|
Snowfall |
62.0 |
30.8 |
43.5 |
47.6 |
|
30yr Norm |
64.3 |
64.3 |
64.3 |
64.3 |
|
Dep/Norm |
-2.3 |
-33.5 |
-20.8 |
-16.7 |
|
TEMPERATURES - 2003 |
| |
JAN |
FEB |
MAR |
APR |
MAY |
JUN |
JUL |
AUG |
SEP |
OCT |
NOV |
DEC |
ANN |
|
2003 |
31.2 |
22.2 |
35.4 |
45.5 |
53.3 |
59.5 |
73.3 |
72.2 |
55.3 |
49.0 |
29.5 |
29.0 |
46.3 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
30yr Norm |
22.9 |
27.2 |
35.3 |
43.0 |
52.5 |
63.2 |
70.6 |
69.3 |
58.3 |
46.3 |
32.6 |
24.5 |
45.5 |
|
Dep/Norm |
8.3 |
-5.0 |
0.1 |
2.5 |
0.8 |
-3.7 |
2.7 |
2.9 |
-3.0 |
2.7 |
-3.1 |
4.5 |
0.8 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
POR Norm |
23.3 |
26.9 |
33.2 |
42.9 |
52.6 |
62.6 |
70.9 |
69.4 |
58.4 |
46.8 |
33.1 |
25.6 |
45.5 |
|
Dep/Norm |
7.9 |
-4.7 |
2.2 |
2.6 |
0.7 |
-3.1 |
2.4 |
2.8 |
-3.1 |
2.2 |
-3.6 |
3.4 |
0.8 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
PRECIPITATION - 2003 |
| |
JAN |
FEB |
MAR |
APR |
MAY |
JUN |
JUL |
AUG |
SEP |
OCT |
NOV |
DEC |
ANN |
|
2003 |
0.10 |
0.50 |
0.97 |
1.54 |
0.51 |
4.71 |
0.41 |
1.69 |
1.38 |
0.61 |
0.30 |
0.39 |
13.11 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
30yr Norm |
0.58 |
0.64 |
0.90 |
1.52 |
2.38 |
1.43 |
1.29 |
0.73 |
0.98 |
1.14 |
0.82 |
0.62 |
13.01 |
|
Dep/Norm |
-0.48 |
-0.14 |
0.07 |
0.02 |
-1.87 |
3.28 |
-0.88 |
0.96 |
0.40 |
-0.53 |
-0.52 |
-0.23 |
0.10 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
POR Norm |
0.51 |
0.56 |
0.88 |
1.47 |
2.08 |
1.43 |
1.10 |
0.66 |
0.95 |
0.99 |
0.73 |
0.54 |
11.92 |
|
Dep/Norm |
-0.41 |
-0.06 |
0.09 |
0.07 |
-1.57 |
3.28 |
-0.69 |
1.03 |
0.43 |
-0.38 |
-0.43 |
-0.15 |
1.19 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
SNOWFALL - 2003 |
| |
JAN |
FEB |
MAR |
APR |
MAY |
JUN |
JUL |
AUG |
SEP |
OCT |
NOV |
DEC |
ANN |
|
2003 |
0.4 |
9.2 |
19.4 |
7.0 |
0.4 |
0.0 |
0.0 |
0.0 |
2.5 |
21.0 |
5.2 |
11.2 |
47.6 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
30yr Norm |
11.1 |
10.8 |
12.5 |
13.9 |
4.4 |
0.1 |
0.0 |
0.0 |
1.4 |
7.4 |
11.4 |
11.6 |
64.3 |
|
Dep/Norm |
-10.7 |
-1.6 |
6.9 |
-6.9 |
-4.0 |
-0.1 |
0.0 |
0.0 |
1.1 |
13.6 |
-6.2 |
-0.4 |
-16.7 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
POR Norm |
9.7 |
9.8 |
12.5 |
11.9 |
4.1 |
0.3 |
0.0 |
0.0 |
1.3 |
6.1 |
10.3 |
9.8 |
58.1 |
|
Dep/Norm |
-9.3 |
-0.6 |
6.9 |
-4.9 |
-3.7 |
-0.3 |
0.0 |
0.0 |
1.2 |
14.9 |
-5.1 |
1.4 |
-10.5 |
BACK TO TOP
2003 ANNUAL SUMMARY FOR
LANDER, WYOMING
For the year 2003, Lander Wyoming was warmer than normal, drier than
normal, with below normal snowfall. This is based on comparing averages of the
daily values with the 30 year normals from
1971-2000.
TEMPERATURE
Even though the year 2003 was warmer than normal, four months during the
year were colder than normal. The yearly average for 2003 was 46.0 degrees,
which was 1.2 degrees above the 30 year normal of 44.8 degrees. Compared with
the POR (Period of Record - 1892-2003), 2003 was 2.1 degrees above the average
of 43.9 degrees.
|
Month |
Feb |
Jun |
Sep |
Nov |
|
Average |
18.0 |
60.6 |
56.8 |
24.4 |
|
30yr Normal |
25.6 |
63.5 |
58.6 |
30.3 |
|
Dep/Normal |
-7.6 |
-2.9 |
-1.8 |
-5.9 |
February had the greatest departure from normal
with nearly 8 degrees below normal.
|
Year |
|
2000 |
2001 |
2002 |
2003 |
|
Temperature |
45.7 |
46.3 |
44.1 |
46.0 |
|
30yr Norm |
44.8 |
44.8 |
44.8 |
44.8 |
|
Dep/Norm |
+0.9 |
+1.5 |
-0.7 |
+1.2 |
PRECIPITATION
The year 2003 received 10.26 inches of precipitation, which was 3.17 inches
below the 30 year normal of 13.43 inches. Compared with the POR average, the
year was 3.16 inches below the long term average. April had the greatest
monthly departure from normal with 0.88 inches, which was 1.19 inches below
the 30 year normal of 2.07. Compared with the POR average, April was 1.31
inches below normal.
The following chart shows 2003 continued the trend of below normal
precipitation, although 2003 was the wettest of the past 4 years. The year
2001 was the driest on record for Lander.
|
Year |
|
2000 |
2001 |
2002 |
2003 |
|
Precipitation |
8.61 |
5.30 |
8.09 |
10.26 |
|
30yr Norm |
13.43 |
13.43 |
13.43 |
13.43 |
|
Dep/Norm |
-4.82 |
-8.13 |
-5.34 |
-3.17 |
SNOWFALL
For the year, 94.7 inches of snow fell in Lander. This was 9.4 inches below
the 30 year normal of 104.1 inches. However, compared to the POR average of
85.6 inches, this was 9.1 inches above normal. February was the snowiest month
in 2003 with 21.6 inches of snowfall.
|
Year |
|
2000 |
2001 |
2002 |
2003 |
|
Snowfall |
58.5 |
52.5 |
88.3 |
94.7 |
|
30yr Norm |
104.1 |
104.1 |
104.1 |
104.1 |
|
Dep/Norm |
-45.6 |
-51.6 |
-15.8 |
-9.4 |
|
TEMPERATURES
- 2003 |
| |
JAN |
FEB |
MAR |
APR |
MAY |
JUN |
JUL |
AUG |
SEP |
OCT |
NOV |
DEC |
ANN |
|
2003 |
28.3 |
18.0 |
36.6 |
47.7 |
54.4 |
60.6 |
76.0 |
73.4 |
56.8 |
50.4 |
24.4 |
25.3 |
46.0 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
30yr Avg |
20.2 |
25.6 |
35.4 |
43.7 |
53.2 |
63.5 |
70.7 |
69.3 |
58.6 |
46.3 |
30.3 |
21.2 |
44.8 |
|
Dep/Norm |
8.1 |
-7.6 |
1.2 |
4.0 |
1.2 |
-2.9 |
5.3 |
4.1 |
-1.8 |
4.1 |
-5.9 |
4.1 |
1.2 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
POR Avg |
19.6 |
24.0 |
32.9 |
42.9 |
52.5 |
61.8 |
69.7 |
67.9 |
57.6 |
45.6 |
31.0 |
21.2 |
43.9 |
|
Dep/Norm |
8.7 |
-6.0 |
3.7 |
4.8 |
1.9 |
-1.2 |
6.3 |
5.5 |
-0.8 |
4.8 |
-6.6 |
4.1 |
2.1 |
| |
|
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|
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|
|
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|
|
|
|
PRECIPITATION - 2003 |
| |
JAN |
FEB |
MAR |
APR |
MAY |
JUN |
JUL |
AUG |
SEP |
OCT |
NOV |
DEC |
ANN |
|
2003 |
0.32 |
1.10 |
0.95 |
0.88 |
1.28 |
1.70 |
0.43 |
0.74 |
1.06 |
0.91 |
0.07 |
0.82 |
10.26 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
30yr Avg |
0.52 |
0.54 |
1.24 |
2.07 |
2.38 |
1.15 |
0.84 |
0.57 |
1.14 |
1.37 |
0.99 |
0.61 |
13.43 |
|
Dep/Norm |
-0.20 |
0.56 |
-0.29 |
-1.19 |
-1.10 |
0.55 |
-0.41 |
0.17 |
-0.08 |
-0.46 |
-0.92 |
0.21 |
-3.17 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
POR Avg |
0.48 |
0.66 |
1.20 |
2.19 |
2.42 |
1.30 |
0.78 |
0.54 |
1.07 |
1.36 |
0.82 |
0.60 |
13.42 |
|
Dep/Norm |
-0.16 |
0.44 |
-0.25 |
-1.31 |
-1.14 |
0.40 |
-0.35 |
0.20 |
-0.01 |
-0.45 |
-0.75 |
0.22 |
-3.16 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
SNOWFALL - 2003 |
| |
JAN |
FEB |
MAR |
APR |
MAY |
JUN |
JUL |
AUG |
SEP |
OCT |
NOV |
DEC |
ANN |
|
2003 |
4.8 |
21.6 |
20.1 |
0.4 |
3.9 |
0.0 |
0.0 |
0.0 |
5.4 |
18.5 |
2.7 |
17.3 |
94.7 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
30yr Avg |
9.7 |
9.4 |
17.4 |
20.8 |
6.5 |
0.4 |
0.0 |
0.0 |
3.0 |
10.0 |
15.5 |
11.5 |
104.1 |
|
Dep/Norm |
-4.9 |
12.2 |
2.7 |
-20.4 |
-2.6 |
-0.4 |
0.0 |
0.0 |
2.4 |
8.5 |
-12.8 |
5.8 |
-9.4 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
POR Avg |
6.8 |
9.6 |
14.8 |
17.2 |
5.7 |
0.8 |
0.0 |
0.0 |
2.2 |
8.7 |
10.9 |
8.6 |
85.6 |
|
Dep/Norm |
-2.0 |
12.0 |
5.3 |
-16.8 |
-1.8 |
-0.8 |
0.0 |
0.0 |
3.2 |
9.8 |
-8.2 |
8.7 |
9.1 |
BACK TO TOP
2003 ANNUAL SUMMARY
FOR RIVERTON, WYOMING
For the year 2003, Riverton Wyoming was warmer than normal, wetter than
normal, with above normal snowfall. This is based on comparing averages of the
daily values with the 30 year normals from
1971-2000.
TEMPERATURE
Even though the year 2003 was warmer than normal, three months during the
year were colder than normal. The yearly average for 2003 was 45.6 degrees,
which was 2.5 degrees above the 30 year normal of 43.1 degrees. Compared with
the POR (Period of Record - 1919-2003), 2003 was 2.3 degrees above the average
of 43.3 degrees.
|
Month |
Feb |
Jun |
Nov |
|
Average |
15.5 |
61.8 |
23.7 |
|
30yr Normal |
21.5 |
63.3 |
27.8 |
|
Dep/Normal |
-6.0 |
-1.5 |
-4.1 |
February had the greatest departure from normal with 6 degrees below
normal.
|
Year |
|
2000 |
2001 |
2002 |
2003 |
|
Temperature |
45.1 |
44.9 |
46.2 |
45.6 |
|
30yr Norm |
43.1 |
43.1 |
43.1 |
43.1 |
|
Dep/Norm |
+2.0 |
+1.8 |
+3.1 |
+2.5 |
PRECIPITATION
The year 2003 received 10.03 inches of precipitation, which was 1.45 inches
above the 30 year normal of 8.58 inches. Compared with the POR average, the
year was 1.40 inches above the long term average. June had the greatest
monthly departure from normal with 2.59 inches, which was 1.44 inches above
the 30 year normal of 1.15. Compared with the POR average, June was 1.28
inches above normal.
2003 in Riverton was the wettest of the past 4 years.
|
Year |
|
2000 |
2001 |
2002 |
2003 |
|
Precipitation |
6.51 |
4.96 |
7.36 |
10.03 |
|
30yr Norm |
8.58 |
8.58 |
8.58 |
8.58 |
|
Dep/Norm |
-2.07 |
-3.62 |
-1.22 |
+1.45 |
SNOWFALL
For the year, 49.9 inches of snow fell in Riverton. This was 19.2 inches
above the 30 year normal of 30.7 inches. Compared to the POR average of 33.6
inches, this was 16.3 inches above normal. February was the snowiest month in
2003 with 15.3 inches of snowfall.
|
Year |
|
2000 |
2001 |
2002 |
2003 |
|
Snowfall |
31.8 |
31.8 |
47.6 |
49.9 |
|
30yr Norm |
30.7 |
30.7 |
30.7 |
30.7 |
|
Dep/Norm |
+1.1 |
+1.1 |
+16.9 |
+19.2 |
|
TEMPERATURES - 2003 |
| |
JAN |
FEB |
MAR |
APR |
MAY |
JUN |
JUL |
AUG |
SEP |
OCT |
NOV |
DEC |
ANN |
|
2003 |
24.8 |
15.5 |
35.2 |
49.5 |
55.9 |
61.8 |
75.3 |
73.8 |
57.4 |
50.7 |
23.7 |
23.5 |
45.6 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
30yr Norm |
13.6 |
21.5 |
34.7 |
43.9 |
53.5 |
63.3 |
69.9 |
67.9 |
56.9 |
44.4 |
27.8 |
14.5 |
43.1 |
|
Dep/Norm |
11.2 |
-6.0 |
0.5 |
5.6 |
2.4 |
-1.5 |
5.4 |
5.9 |
0.5 |
6.3 |
-4.1 |
9.0 |
2.5 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
POR Norm |
14.8 |
22.1 |
33.4 |
43.9 |
53.9 |
62.9 |
70.3 |
67.9 |
57.4 |
44.9 |
28.3 |
17.3 |
43.3 |
|
Dep/Norm |
10.0 |
-6.6 |
1.8 |
5.6 |
2.0 |
-1.1 |
5.0 |
5.9 |
0.0 |
5.8 |
-4.6 |
6.2 |
2.3 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
PRECIPITATION - 2003 |
| |
JAN |
FEB |
MAR |
APR |
MAY |
JUN |
JUL |
AUG |
SEP |
OCT |
NOV |
DEC |
ANN |
|
2003 |
0.14 |
1.15 |
0.97 |
0.70 |
1.30 |
2.59 |
0.14 |
0.96 |
0.81 |
0.76 |
0.09 |
0.42 |
10.03 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
30yr Norm |
0.27 |
0.24 |
0.48 |
1.01 |
1.78 |
1.15 |
0.73 |
0.49 |
0.88 |
0.81 |
0.47 |
0.38 |
8.58 |
|
Dep/Norm |
-0.13 |
0.91 |
0.49 |
-0.31 |
-0.48 |
1.44 |
-0.59 |
0.47 |
-0.07 |
-0.05 |
-0.38 |
0.04 |
1.45 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
POR Norm |
0.21 |
0.25 |
0.47 |
1.13 |
1.74 |
1.31 |
0.76 |
0.48 |
0.83 |
0.86 |
0.46 |
0.27 |
8.63 |
|
Dep/Norm |
-0.07 |
0.90 |
0.50 |
-0.43 |
-0.44 |
1.28 |
-0.62 |
0.48 |
-0.02 |
-0.10 |
-0.37 |
0.15 |
1.40 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
SNOWFALL - 2003 |
| |
JAN |
FEB |
MAR |
APR |
MAY |
JUN |
JUL |
AUG |
SEP |
OCT |
NOV |
DEC |
ANN |
|
2003 |
2.2 |
15.3 |
11.0 |
1.5 |
0.7 |
T |
0.0 |
T |
0.0 |
12.6 |
1.7 |
4.9 |
49.9 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
30yr Norm |
4.8 |
4.5 |
4.6 |
4.3 |
0.5 |
0.0 |
0.0 |
0.0 |
0.7 |
2.5 |
4.9 |
5.5 |
30.7 |
|
Dep/Norm |
-2.6 |
10.8 |
6.4 |
-2.8 |
0.2 |
0.0 |
0.0 |
0.0 |
-0.7 |
10.1 |
-3.2 |
-0.6 |
19.2 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
POR Norm |
3.5 |
4.1 |
5.4 |
5.5 |
1.0 |
0.2 |
0.0 |
0.0 |
0.6 |
3.5 |
5.1 |
4.3 |
33.6 |
|
Dep/Norm |
-1.3 |
11.2 |
5.6 |
-4.0 |
-0.3 |
-0.2 |
0.0 |
0.0 |
-0.6 |
9.1 |
-3.4 |
0.6 |
16.3 |
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