138688 - WASHINGTON, Iowa

Latitude
41° 17´N
Longitude
91° 41´W
Elevation
756 feet

HCND

Iowa
Help

Main
10 nearest HCND stations
22 miSW :FAIRFIELD, IA
24 miSSE :MOUNT PLEASANT 1SSW, IA
49 miE :ALEDO, IL
52 miNW :BELLE PLAINE, IA
59 miWSW :ALBIA 3NNE, IA
60 miESE :MONMOUTH, IL
61 miSE :LA HARPE, IL
67 miNW :TOLEDO, IA
81 miENE :CLINTON #1, IA
86 miE :GALVA, IL

Weather variables    Help
Click a weather variable name to jump down to those statistics.
Total
observations
%
NDJFM
observations
%
TMAX
18174
99.5%
7525
99.5%
TMIN
18170
99.5%
7526
99.5%
PRCP
14411
78.9%
5757
76.1%
SNOW
12276
67.2%
5030
66.5%




TMAX     Help     top of page

TMAX
observations
mean
std dev
   
Distribution
during extreme days of
NDJFM
7525  by year
40.0°F
14.5°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>=62°F
555
0.38
122
46
2.7*
map
table
Extreme low events
Days with TMAX<=18°F
519
-0.47
72
149
2.1*
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>=62°F
555
-0.31
46
99
2.2*
map
table
Extreme low events
Days with TMAX<=18°F
519
0.06
110
109
1.0
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>=62°F
555
80
101
1.3
map
table
Extreme low events
Days with TMAX<=18°F
519
57
70
1.2
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
7526  by year
21.8°F
13.9°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<=-2°F
516
-0.43
75
142
1.9*
map
table
Extreme high events
Days with TMIN>=40°F
531
0.30
110
50
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<=-2°F
516
0.14
125
99
1.3
map
table
Extreme high events
Days with TMIN>=40°F
531
-0.38
30
93
3.1*
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<=-2°F
516
50
62
1.2
map
table
Extreme high events
Days with TMIN>=40°F
531
115
74
1.6*
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
5757  by year
0.07"
   
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"
1606
0.26"
0.00
272
274
1.0
map
table
Extreme events
Days with PRCP>0.41"
314
0.77"
0.14
61
42
1.5
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"
1606
0.26"
-0.24
184
319
1.7*
map
table
Extreme events
Days with PRCP>0.41"
314
0.77"
-0.45
20
68
3.4*
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"
1606
0.26"
257
241
1.1
map
table
Extreme events
Days with PRCP>0.41"
314
0.77"
55
43
1.3
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
5030  by year
0.23"
   
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"
598
1.94"
-0.23
83
137
1.7*
map
table
Extreme events
Days with SNOW>3.0"
100
4.93"
-0.30
14
24
1.7
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"
598
1.94"
0.03
108
96
1.1
map
table
Extreme events
Days with SNOW>3.0"
100
4.93"
-0.16
13
21
1.6
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"
598
1.94"
73
89
1.2
map
table
Extreme events
Days with SNOW>3.0"
100
4.93"
9
14
1.6
map
table

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