Illinois USA Weather Data, Plant Disease Risk and Degree-Day Models RAWS Network - other tables for IL include: All Networks, CWOP/APRS, HADS, METAR, see our homepage.

Interactive degree-day maps Degree-day & Phenology Model Calculator  Also try the full-featured calculator/DD model Select model:  Degree-Day Calculator enter your own thresholds T-Sum 200 forage management - N fertilization asian citrus psyllid [citrus] IPPC synth. asian longhorned beetle [trees] IPPC synth. apple maggot 1st emerg [cherry, apple] Jones 1989 apple maggot % emerg [cherry, apple] Jones 1989 apple scab infec seas [apple] Gadoury et al. 1995 alfalfa weevil [alfalfa] U WY,Harcourt 1981 barley P. Miller, MSU bertha armyworm [vegetables] Bailey 1976 bronze birch borer (birch] OSU IPPC 2019 black cutworm [vegetables] Luckmann et al. 1976 brown marmorated stink bug [multiple] broccoli [Arcadia] CROPTIME model broccoli [Emerald Pride] CROPTIME model broccoli [Green Magic] CROPTIME model broccoli [Imperial] CROPTIME model cabbage looper [vegetables] Toba etal 1973 corn earworm [sweet corn] Hartstack et al. 1976 western cherry fruit fly [cherry-E. of Cascades] Jones et al. western cherry fruit fly [cherry-W. of Cascades] AliNiazee honeydew moth [citrus, many hosts] chick pea (Desi not Kabuli) P. Miller, MSU codling moth [apple & pear] Brunner & Hoyt 1987 codling moth revised 06 [apple & pear] Knight 2007 codling moth no biofix WSU Jones et al. 2008 cereal leaf beetle [grasses and grains] Fulton et al. 1975 cabbage Maggot - Dreves 2005 newsletter (pdf) cucumber-Marketmore direct seeded CROPTIME model cucumber-Marketmore transplanted CROPTIME model cucumber-Cobra direct seeded CROPTIME model cucumber-Dasher II direct seeded CROPTIME model cucumber-Extreme direct seeded CROPTIME model cucumber-Supremo direct seeded CROPTIME model cucumber-Zapata direct seeded CROPTIME model canola (Argentine) P. Miller, MSU canola (Polish) P. Miller, MSU canary P. Miller, MSU downy brome Dan Ball Diorhabda carinulata [weed biocontrol] Douglas-fir needle midge [fir trees] emerald ash borer [ash] McCullough and Siegert (2006) early blight of potato eur. pine shoot moth [nursery crops] Regan 1990 european grapevine moth [grapes] UC Napa Extension (2010) Fenders blue butterfly [Fenders Lupine] cougarblight (fire blight) [apple & pear] Smith 1998 filbertworm [hazelnut] Aliniazee (1983) false codling moth [citrus, many hosts] flax P. Miller, MSU fruittree leafroller [tree fruits, ornamentals] Judd et al. Galerucella calmariensis [weed biocontrol] gypsy moth egg hatch Russo et al. (1993) gypsy moth larvae and pupae Carter et al. (1992) gypsy moth full model simplified from Sheehan hairy nightshade (CROPTIME weed model) hop downy mildew season initiation (Gent et al. 2010) isomate-c+ Pacific Biocontrol Corporation Data Japanese knotweed psyllid [weed biocontrol] OSU analysis Japanese beetle [mult. crops] APHIS data Japanese pine sawyer beetle [pine trees] OSU analysis Japanese flower thrips [vegetables] light brown apple moth [tree fruits, grapes] lambsquarter [CROPTIME weed model] Lacanobia fruitworm [apple & pear] Brunner 2003 lentil (intermediate) P. Miller, MSU Lygus bug [alfalfa seed] Ben Simko 2000 Metaseiulus occidentalis Tanagoshi et al. 1975 mint flea beetle Berry et al. mint root borer Berry et al. mustard J (Brown and Oriental) P. Miller, MSU mustard (Yellow) P. Miller, MSU mummyberry inf. season [blueberry] Pscheidt 2014 Neoseiulus fallacis Dover et al. 1979 oak ambrosia beetle [oak trees] oat P. Miller, MSU obliquebanded leafroller [tree fruit] Brunner 1997 obliquebanded leafroller [hazelnut] Gang.; Ali. 1985 orange tortrix (cold winter) [small fruit] Knight 1988 orange tortrix (mild winter) [small fruit] Knight 1988 oriental fruit moth [stone fruit] CA IPM: Rice et al. omnivorous leaftier [many] Helicoverpa armigera (old world bollworm) Pandemis leafroller [tree fruits] Brunner (1991) Pea (yellow-determinate or indeterm) P. Miller MSU pine shoot beetle [pine trees] Peach twig borer [stone fruits] 2007 USU Extension pear scab infec seas [pear] OSU Hd Rvr/Bob Spotts pecan nut casebearer [pecan] 1988 NMSU pink bollworm [cotton] UC Davis IPM pepper - Bell King transplant CROPTIME model pepper - Gatherers gold transplant CROPTIME model pepper - King Arthur transplant CROPTIME model pepper - Stocky red roaster transplant CROPTIME model potato psyllid [potato, tomato] pine tree lappet moth [pine trees] redroot pigweed CROPTIME weed model Safflower (Saffire) P. Miller, MSU San Jose Scale [tree fruits] Rice et al. (1982) small broomrape (red clover) J. Colquhoun Spodoptera litura [omnivorous] spotted wing Drosophila [fruits] spotted wing Drosophila overwintering mortality [fruits] sweet corn [Jubilee] Coop et al. (1993) sweet corn [Luscious DS] Andrews et al. (2019) sweet corn [Luscious TP] Andrews et al. (2019) sweet corn [Sugar Pearl,Temptation DS] Andrews et al. (2019) sweet corn [Sugar Pearl,Temptation TP] Andrews et al. (2019) sweet corn [4001 DS] Andrews et al. (2019) sweet corn [Kokanee DS] Andrews et al. (2019) Sunflower (depends on maturity class) P. Miller MSU sunflower stem weevil [sunflower] Merrill et al. 2010 sugarbeet root maggot Bechinski et al. 1990 strawberry root weevil [mint] Cacka 1982 strawberry rt weev [strawberry] Umble Fisher 2002 small tomato borer [Solanaceae] tomato leafminer [Solanaceae] tomato [Big Beef] tomato [Indigo Rose] tomato [Monica] tomato [New Girl] threecornered alfalfa hopper [legumes, grapes] variegated cutworm [mint] Coop & Berry 1987 walnut husk fly [walnut] Kasana & AliNiazee 1997 western bean cutworm [corn and beans] Neb. western flower thrips [vegetables] Wheat (Bauer model) [spring wheat] Wheat (Hard Red) P. Miller, MSU winter wheat Karow et al. 1993 Thresholds: lower: °F   upper: °F (or celsius °C:)   Calc. method: simple average growing dds single triangle double triangle single sine double sine heating dds cooling dds potato p-days Start (biofix) date:  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31  End date:  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31   same year following year  Forecast type:  after 7day use 10 year averages (default) after 7day use 30 year averages after 7day use last years data after 7day use data from 2 years ago after 7day use NMME seasonal forecast after 7day use CFSv2 seasonal forecast   Statewide Disease Alert Maps: tomato-potato Smith late blight, Tomcast DSV, fire blight, soybean rust Disease Alert Movies: fireblight: 2010 2011 2012 2013 Data table - to SORT click on headers:

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All data provided "as is" and users assume all risk in its use - see full disclaimer. All NWS derived data is not subject to copyright protection. This site hosted by the Oregon IPM Center at Oregon State University with support from USDA APHIS, various USDA NIFA grants, and USDA Western Region IPM Center. Climate map data provided by OSU PRISM Group, realtime public weather data provided by U. Utah Mesowest and various other networks.
This site on-line since April 5, 1996; last update Jan. 3, 2024
Contact Len Coop, OSU IPPC and Horticulture Dept. at coopl@science.oregonstate.edu or if you have any questions about this information.