241722 - CHINOOK, Montana

Latitude
48° 35´N
Longitude
109° 14´W
Elevation
715 meters

COOP Northwest

Montana
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Main
10 nearest COOP Northwest stations
9 miN :CHINOOK 15 N, MT
12 miW :HAVRE, MT
12 miSSE :CLEVELAND 5 ENE, MT
12 miSSW :LLOYD, MT
13 miS :CLEVELAND, MT
13 miWNW :HAVRE 14 N, MT
15 miW :HAVRE CITY-COUNTY ARPT, MT
16 miWSW :FORT ASSINNIBOINE, MT
21 miSW :ROCKY BOY, MT
24 miSSW :WARRICK 2 NW, MT

Weather variables    Help
Click a weather variable name to jump down to those statistics.
Total
observations
%
NDJFM
observations
%
TMAX
17282
94.6%
7178
94.9%
TMIN
17261
94.5%
7180
94.9%
PRCP
17461
95.6%
7226
95.5%
SNOW
14349
78.6%
4833
63.9%




TMAX     Help     top of page

TMAX
observations
mean
std dev
   
Distribution
during extreme days of
NDJFM
7178  by year
34.8°F
18.2°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>=59°F
519
0.31
102
41
2.5*
map
table
Extreme low events
Days with TMAX<=3°F
485
-0.35
73
136
1.9*
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>=59°F
519
0.69
153
18
8.5*
map
table
Extreme low events
Days with TMAX<=3°F
485
-1.18
14
239
17.1*
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>=59°F
519
97
95
1.0
map
table
Extreme low events
Days with TMAX<=3°F
485
51
90
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
7180  by year
10.2°F
16.9°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<=-19°F
496
-0.28
82
125
1.5*
map
table
Extreme high events
Days with TMIN>=32°F
499
0.29
106
49
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<=-19°F
496
-1.00
15
223
14.9*
map
table
Extreme high events
Days with TMIN>=32°F
499
0.36
99
30
3.3*
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<=-19°F
496
45
84
1.9*
map
table
Extreme high events
Days with TMIN>=32°F
499
72
78
1.1
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
7226  by year
0.02"
   
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"
1154
0.10"
-0.10
162
213
1.3*
map
table
Extreme events
Days with PRCP>0.15"
225
0.28"
-0.11
28
35
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"
1154
0.10"
-0.48
115
324
2.8*
map
table
Extreme events
Days with PRCP>0.15"
225
0.28"
-0.43
21
54
2.6*
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"
1154
0.10"
142
234
1.6*
map
table
Extreme events
Days with PRCP>0.15"
225
0.28"
23
39
1.7
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
4833  by year
0.18"
   
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"
540
1.59"
0.02
89
87
1.0
map
table
Extreme events
Days with SNOW>2.5"
100
3.90"
-0.16
17
20
1.2
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"
540
1.59"
-0.71
35
181
5.2*
map
table
Extreme events
Days with SNOW>2.5"
100
3.90"
-0.63
8
27
3.4*
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"
540
1.59"
53
148
2.8*
map
table
Extreme events
Days with SNOW>2.5"
100
3.90"
11
20
1.8
map
table

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