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United States of America

TRILLA, ILLINOIS


Home > North America > United States > Illinois
Elevation: 210 meters     Latitude: 39 28N     Longitude: 088 19W

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MONTHLY - ALL WEATHER AVERAGES   [ Show Summary ]
[ °F ]   °C
TEMPERATURE 
Average Temperature
Years on Record: 118  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C11.7-2.6-0.6511.617.622.624.623.419.613.35.9-0.4

Average High Temperature
Years on Record: 118  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C17.224.210.317.523.628.630.329.325.919.510.93.9

Average Low Temperature
Years on Record: 118  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C6.2-6.9-5.3-0.25.611.616.718.817.513.37.20.9-4.7

Highest Recorded Temperature
Years on Record: 118  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C43.921.123.329.431.73540.643.94039.433.327.821.7

Lowest Recorded Temperature
Years on Record: 118  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C-30.6-30.6-27.2-22.2-8.3-2.22.27.84.4-2.2-7.2-18.9-28.9

Average Number of Days Above 100F/38C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days0.4------------------0.20.2------------

Average Number of Days Above 90F/32C
Years on Record: 118  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days27.1------------0.86.49.67.130.1------

Average Number of Days Above 80F/26C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days103.1------0.429.321.227.424.815.52.30.1---

Average Number of Days Above 70F/21C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days162.7---0.12.7921.628.530.930.725.711.72---

Average Number of Days Above 60F/15C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days211.70.61.27.519.82930313129.422.68.61.1

Average Number of Days Above 50F/10C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days256.83.46.116.62730.93031313029.4174.5

Average Number of Days Above 40F/4C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days300.49.913.524.829.7313031313030.824.714

Average Number of Days Below 70F/21C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days342.43128313030.325.321.624.229313031

Average Number of Days Below 60F/15C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days269.4312830.728.722.68.93.96.818.928.93031

Average Number of Days Below 50F/10C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days206.930.827.829.322.610.71.1---0.46.12027.530.7

Average Number of Days Below 40F/4C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days154.230.226.624.410.81.4---------0.89.321.129.6

Average Number of Days Below 32F/0C
Years on Record: 118  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days114.8272317.64.80.2------------2.914.524.7

Average Number of Days Below 20F/-6C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days36.213.28.42.5---------------------1.810.3

Average Number of Days Below 10F/-12C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days14.96.33.80.2---------------------0.14.5

Average Number of Days Below 0F/-17C
Years on Record: 118  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days5.62.71.60.1------------------------1.2



PRECIPITATION 
Average Precipitation
Years on Record: 118  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm964565275961001031087879708167

Average Number of Days With Precipitation
Years on Record: 118  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days1089810111110987799

Most Reported Precipitation in a Month
Years on Record: 118  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm300252135192247279300256211245224254203

Least Reported Precipitation in a Month
Years on Record: 118  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm------8131218132048424

Most Precipitation Reported in a Day
Years on Record: 118  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm141.284.873.276.788.981.8100.3141.2123.4127.886.487.177.2

Avg. No. of Days w/Precip. Above 0.1in/2.5mm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days71.64.94.66.37.37.87.16.35.24.85.86.45.1

Avg. No. of Days w/Precip. Above 0.2in/5mm
Years on Record: 118  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days70557777655565

Avg. # of Days w/Precip. Above 0.4in/10mm
Years on Record: 118  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days26212233322222

Avg. No. of Days w/Precip. Above 0.5in/13mm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days27.31.61.21.92.72.633.11.82.12.62.91.8

Avg. No. of Days w/Precip. Above 1in/25mm
Years on Record: 118  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days10------1111111111



PRECIPITATION - RAIN 
Average Number of Rainy Days
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days108.88.47.710.511.110.99.897.47.37.49.29.1

Most Rain Reported in a Day
Years on Record: 102  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm12080708080801009012090808070

Most Rain Reported in a Month
Years on Record: 102  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm1360250130200240270370250210240190250200

Least Rain Reported in a Month
Years on Record: 102  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm470------1010101020---------------



PRECIPITATION - SNOW 
Average Snowfall
Years on Record: 118  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
cm4613.59.98.40.2------------------2.811.2

Average Number of Days With Snow
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days9.53.12.30.80.1------------------0.32.9

Most Snow Reported in a Month
Years on Record: 118  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
cm88.957.434.388.92.5------------------24.176.2

Avg. No. of Days w/Snow Above 1in/2.5cm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days5.72.11.20.50.1------------------0.11.7

Avg. No. of Days w/Snow Above 3in/7.5cm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days1.90.80.50.1------------------------0.5

Avg. No. of Days w/Snow Above 5in/12.7cm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days0.50.2---0.1------------------------0.2

Avg. # of Days w/Snow Depth Above 1in/2.5cm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days22.68.96.21.20.1------------------0.26

Avg. # of Days w/Snow Depth Above 3in/7.5cm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days9.64.22.70.3------------------------2.4

Avg. # of Days w/Snow Depth Above 5in/12.7cm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days4.22.110.2------------------------0.9

Avg. # of Days w/Snow Depth Above 10in/25cm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days1.30.80.5------------------------------



DEGREE DAYS 
Heating Degree Days
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days5313115592570634411412---3592986431054

Cooling Degree Days
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days1212------21789267360307148221---

Growing Degree Days
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days38132450184444705824769539233554



SKY CONDITIONS 
Average Length of Day
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Hours12.710.311.212.513.814.915.515.114.112.911.610.59.9



SOLAR RADIATION 
Average Daily Solar Radiation - Global
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m214.16.69.312.916.619.421.522.11916.5127.55.8

Average Daily Solar Radiation - Diffuse
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m25.734.15.67.28.38.78.27.45.74.33.22.7

Average Daily Solar Radiation - Reflected
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m215.410.412.314.916.817.818.819.718.418.516.111.29.5

Average Daily Solar Radiation - Direct
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m215.310.111.813.815.617.219.521.318.519.116.311.19.3

Maximum Daily Solar Radiation - Global
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m214.16.69.312.916.619.421.522.11916.5127.55.8

Maximum Daily Solar Radiation - Diffuse
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m25.934.25.77.48.69.18.87.76.34.63.32.7

Maximum Daily Solar Radiation - Reflected
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m218.413.315.218.420.422.121.621.820.222.318.115.811.7

Maximum Daily Solar Radiation - Direct
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m220.514.216.21921.926.125.826.221.925.819.317.612.4

Minimum Daily Solar Radiation - Global
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m211.356.89.113.117.118.118.216.313.28.94.84.6

Minimum Daily Solar Radiation - Diffuse
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m25.22.83.85.26.67.37.97.574.842.82.6

Minimum Daily Solar Radiation - Reflected
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m211.67.18.19.81315.71616.315.814.210.96.16.7

Minimum Daily Solar Radiation - Direct
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m29.65.86.36.89.513.113.814.513.712.39.14.65.8




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