243489 - GIBSON DAM, Montana

Latitude
47° 36´N
Longitude
112° 45´W
Elevation
1399 meters

COOP Northwest

Montana
Help

Main
10 nearest COOP Northwest stations
4 miESE :AUGUSTA 11 WNW, MT
11 miESE :AUGUSTA, MT
18 miENE :CHOTEAU, MT
19 miNE :BYNUM 4 SSE, MT
20 miNE :BYNUM, MT
22 miSE :ROGERS PASS 9 NNE, MT
24 miSSE :ROGERS PASS, MT
25 miSSE :LINCOLN 14 NE, MT
27 miSSE :MIKE HORSE, MT
38 miSW :OVANDO, MT

Weather variables    Help
Click a weather variable name to jump down to those statistics.
Total
observations
%
NDJFM
observations
%
TMAX
17865
97.8%
7351
97.2%
TMIN
17909
98.1%
7382
97.6%
PRCP
17970
98.4%
7398
97.8%
SNOW
17470
95.7%
7089
93.7%




TMAX     Help     top of page

TMAX
observations
mean
std dev
   
Distribution
during extreme days of
NDJFM
7351  by year
37.8°F
13.6°F
   
overall
NAM
PNA
CTI

TMAX and NAM    Help
scatterplot
days
by month
mean
NAM index
extreme high
NAM days
extreme low
NAM days
ratio of extreme
high:low NAM days
Extreme high events
Days with TMAX>=55°F
526
0.30
109
37
2.9*
map
table
Extreme low events
Days with TMAX<=14°F
492
-0.30
86
140
1.6*
map
table

TMAX and PNA    Help
scatterplot
days
by month
mean
PNA index
extreme high
PNA days
extreme low
PNA days
ratio of extreme
high:low PNA days
Extreme high events
Days with TMAX>=55°F
526
0.97
210
13
16.2*
map
table
Extreme low events
Days with TMAX<=14°F
492
-1.10
13
224
17.2*
map
table

TMAX and CTI    Help
days
by month
high CTI days
(moderate to strong
El Niño winters)
low CTI days
(moderate to strong
La Niña winters)
ratio of high:low CTI
(El Niño:La Niña days)
Extreme high events
Days with TMAX>=55°F
526
88
68
1.3
map
table
Extreme low events
Days with TMAX<=14°F
492
58
102
1.8*
map
table

TMAX under 2 index extremes     Help
Station table Maps - choose one extreme:
High NAMLow NAM High PNALow PNA High CTILow CTI




TMIN     Help     top of page

TMIN
observations
mean
std dev
   
Distribution
during extreme days of
NDJFM
7382  by year
17.6°F
15.6°F
   
overall
NAM
PNA
CTI

TMIN and NAM    Help
scatterplot
days
by month
mean
NAM index
extreme high
NAM days
extreme low
NAM days
ratio of extreme
high:low NAM days
Extreme low events
Days with TMIN<=-11°F
504
-0.29
86
142
1.7*
map
table
Extreme high events
Days with TMIN>=36°F
503
0.20
100
57
1.8*
map
table

TMIN and PNA    Help
scatterplot
days
by month
mean
PNA index
extreme high
PNA days
extreme low
PNA days
ratio of extreme
high:low PNA days
Extreme low events
Days with TMIN<=-11°F
504
-1.16
11
242
22.0*
map
table
Extreme high events
Days with TMIN>=36°F
503
0.62
142
21
6.8*
map
table

TMIN and CTI    Help
days
by month
high CTI days
(moderate to strong
El Niño winters)
low CTI days
(moderate to strong
La Niña winters)
ratio of high:low CTI
(El Niño:La Niña days)
Extreme low events
Days with TMIN<=-11°F
504
53
86
1.6*
map
table
Extreme high events
Days with TMIN>=36°F
503
70
99
1.4*
map
table

TMIN under 2 index extremes     Help
Station table Maps - choose one extreme:
High NAMLow NAM High PNALow PNA High CTILow CTI




PRCP (total liquid water equivalent)     Help     top of page

PRCP
observations
mean
   
Distribution
during extreme days of
NDJFM
7398  by year
0.03"
   
overall
NAM
PNA
CTI

PRCP and NAM    Help
scatterplot
days
by month
mean
mean
NAM index
extreme high
NAM days
extreme low
NAM days
ratio of extreme
high:low NAM days
Observed events
Days with PRCP>0.00"
1681
0.14"
-0.05
269
310
1.2
map
table
Extreme events
Days with PRCP>0.21"
325
0.38"
-0.05
44
54
1.2
map
table

PRCP and PNA    Help
scatterplot
days
by month
mean
mean
PNA index
extreme high
PNA days
extreme low
PNA days
ratio of extreme
high:low PNA days
Observed events
Days with PRCP>0.00"
1681
0.14"
-0.49
137
441
3.2*
map
table
Extreme events
Days with PRCP>0.21"
325
0.38"
-0.66
19
91
4.8*
map
table

PRCP and CTI    Help
days
by month
mean
high CTI days
(moderate to strong
El Niño winters)
low CTI days
(moderate to strong
La Niña winters)
ratio of high:low CTI
(El Niño:La Niña days)
Observed events
Days with PRCP>0.00"
1681
0.14"
239
310
1.3*
map
table
Extreme events
Days with PRCP>0.21"
325
0.38"
44
61
1.4
map
table

PRCP under 2 index extremes     Help
Station table Maps - choose one extreme:
High NAMLow NAM High PNALow PNA High CTILow CTI




SNOW     Help     top of page

SNOW
observations
mean
   
Distribution
during extreme days of
NDJFM
7089  by year
0.38"
   
overall
NAM
PNA
CTI

SNOW and NAM    Help
scatterplot
days
by month
mean
mean
NAM index
extreme high
NAM days
extreme low
NAM days
ratio of extreme
high:low NAM days
Observed events
Days with SNOW>0.0"
1118
2.40"
-0.16
156
231
1.5*
map
table
Extreme events
Days with SNOW>4.0"
152
7.50"
-0.14
23
31
1.3
map
table

SNOW and PNA    Help
scatterplot
days
by month
mean
mean
PNA index
extreme high
PNA days
extreme low
PNA days
ratio of extreme
high:low PNA days
Observed events
Days with SNOW>0.0"
1118
2.40"
-0.70
73
367
5.0*
map
table
Extreme events
Days with SNOW>4.0"
152
7.50"
-0.71
8
44
5.5*
map
table

SNOW and CTI    Help
days
by month
mean
high CTI days
(moderate to strong
El Niño winters)
low CTI days
(moderate to strong
La Niña winters)
ratio of high:low CTI
(El Niño:La Niña days)
Observed events
Days with SNOW>0.0"
1118
2.40"
150
245
1.6*
map
table
Extreme events
Days with SNOW>4.0"
152
7.50"
25
28
1.1
map
table

SNOW under 2 index extremes     Help
Station table Maps - choose one extreme:
High NAMLow NAM High PNALow PNA High CTILow CTI