248914 - WHITEHALL, Montana

Latitude
45° 52´N
Longitude
111° 58´W
Elevation
1304 meters

COOP Northwest

Montana
Help

Main
10 nearest COOP Northwest stations
0 miE :CARDWELL, MT
6 miESE :SAPPINGTON, MT
9 miSSE :PONY, MT
15 miENE :TRIDENT, MT
15 miSE :NORRIS 3 ENE, MT
18 miE :MANHATTAN, MT
19 miSSE :NORRIS MADISON PUMP HS, MT
20 miESE :ANCENEY, MT
23 miSSE :ENNIS, MT
23 miW :WHITEHALL, MT

Weather variables    Help
Click a weather variable name to jump down to those statistics.
Total
observations
%
NDJFM
observations
%
TMAX
3678
20.1%
1538
20.3%
TMIN
3672
20.1%
1537
20.3%
PRCP
3679
20.1%
1539
20.3%
SNOW
3207
17.6%
1191
15.7%




TMAX     Help     top of page

TMAX
observations
mean
std dev
   
Distribution
during extreme days of
NDJFM
1538  by year
41.4°F
13.3°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>=58°F
123
0.33
26
7
3.7*
map
table
Extreme low events
Days with TMAX<=19°F
107
-0.15
16
23
1.4
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>=58°F
123
0.27
25
8
3.1*
map
table
Extreme low events
Days with TMAX<=19°F
107
-1.09
3
48
16.0*
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>=58°F
123
8
44
5.5*
map
table
Extreme low events
Days with TMAX<=19°F
107
36
27
1.3
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
1537  by year
16.5°F
14.8°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<=-10°F
110
-0.29
11
23
2.1
map
table
Extreme high events
Days with TMIN>=34°F
108
0.17
18
8
2.2*
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<=-10°F
110
-0.99
5
47
9.4*
map
table
Extreme high events
Days with TMIN>=34°F
108
0.07
15
13
1.2
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<=-10°F
110
42
23
1.8
map
table
Extreme high events
Days with TMIN>=34°F
108
13
38
2.9*
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
1539  by year
0.01"
   
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"
234
0.09"
-0.11
35
38
1.1
map
table
Extreme events
Days with PRCP>0.12"
40
0.27"
-0.23
7
8
1.1
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"
234
0.09"
-0.55
16
72
4.5*
map
table
Extreme events
Days with PRCP>0.12"
40
0.27"
-0.23
2
8
4.0
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"
234
0.09"
54
71
1.3
map
table
Extreme events
Days with PRCP>0.12"
40
0.27"
10
7
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
1191  by year
0.13"
   
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"
115
1.38"
-0.51
9
32
3.6*
map
table
Extreme events
Days with SNOW>2.0"
20
4.08"
-0.68
2
7
3.5
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"
115
1.38"
-0.75
6
44
7.3*
map
table
Extreme events
Days with SNOW>2.0"
20
4.08"
-0.77
1
8
8.0
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"
115
1.38"
34
22
1.5
map
table
Extreme events
Days with SNOW>2.0"
20
4.08"
7
1
7.0
map
table

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