116526 - OTTAWA 5 SW, Illinois

Latitude
41° 20´N
Longitude
88° 55´W
Elevation
160 meters

COOP Midwest

Illinois
Help

Main
10 nearest COOP Midwest stations
4 miWSW :UTICA STARVED ROCK DAM, IL
8 miENE :DAYTON, IL
9 miE :MARSEILLES LOCK, IL
10 miW :PERU, IL
10 miW :LA SALLE 1 S, IL
11 miW :LA SALLE PERU, IL
11 miW :PERU, IL
17 miSSE :STREATOR 3 SE, IL
20 miSSW :WENONA, IL
21 miW :HENNEPIN POWER PLANT, IL

Weather variables    Help
Click a weather variable name to jump down to those statistics.
Total
observations
%
NDJFM
observations
%
TMAX
18084
99.0%
7488
99.0%
TMIN
18069
98.9%
7480
98.9%
PRCP
18201
99.7%
7516
99.4%
SNOW
18202
99.7%
7505
99.2%




TMAX     Help     top of page

TMAX
observations
mean
std dev
   
Distribution
during extreme days of
NDJFM
7488  by year
40.4°F
13.7°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
531
0.34
110
42
2.6*
map
table
Extreme low events
Days with TMAX<=20°F
505
-0.39
76
137
1.8*
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
531
-0.38
34
100
2.9*
map
table
Extreme low events
Days with TMAX<=20°F
505
0.20
116
86
1.3
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
531
87
91
1.0
map
table
Extreme low events
Days with TMAX<=20°F
505
49
68
1.4
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
7480  by year
23.2°F
13.3°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<=0°F
513
-0.38
80
135
1.7*
map
table
Extreme high events
Days with TMIN>=40°F
579
0.20
93
55
1.7*
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<=0°F
513
0.26
134
82
1.6*
map
table
Extreme high events
Days with TMIN>=40°F
579
-0.43
26
100
3.8*
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<=0°F
513
46
63
1.4
map
table
Extreme high events
Days with TMIN>=40°F
579
126
81
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
7516  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"
2103
0.25"
-0.01
341
346
1.0
map
table
Extreme events
Days with PRCP>0.38"
410
0.78"
0.06
77
68
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"
2103
0.25"
-0.22
259
411
1.6*
map
table
Extreme events
Days with PRCP>0.38"
410
0.78"
-0.55
33
107
3.2*
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"
2103
0.25"
304
349
1.1
map
table
Extreme events
Days with PRCP>0.38"
410
0.78"
68
55
1.2
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
7505  by year
0.16"
   
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"
759
1.59"
-0.27
105
183
1.7*
map
table
Extreme events
Days with SNOW>2.5"
133
4.45"
-0.30
15
31
2.1*
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"
759
1.59"
0.05
142
125
1.1
map
table
Extreme events
Days with SNOW>2.5"
133
4.45"
-0.15
22
31
1.4
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"
759
1.59"
70
131
1.9*
map
table
Extreme events
Days with SNOW>2.5"
133
4.45"
12
13
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