# IEM Climodat https://mesonet.agron.iastate.edu/climodat/ # Report Generated: 02 May 2025 # Climate Record: 1893-01-01 -> 2025-05-02 # Site Information: [IATAME] Ames Area # Contact: Daryl Herzmann akrherz@iastate.edu 515.294.5978 # Low Temperature exceedence probabilities # On a certain date, what is the observed frequency that a given temperature threshold has been first observed by the given date. DOY Date <=32 <=28 <=26 <=22 214 Aug 01 0 0 0 0 216 Aug 03 0 0 0 0 218 Aug 05 0 0 0 0 220 Aug 07 0 0 0 0 222 Aug 09 0 0 0 0 224 Aug 11 0 0 0 0 226 Aug 13 0 0 0 0 228 Aug 15 0 0 0 0 230 Aug 17 0 0 0 0 232 Aug 19 0 0 0 0 234 Aug 21 0 0 0 0 236 Aug 23 0 0 0 0 238 Aug 25 0 0 0 0 240 Aug 27 0 0 0 0 242 Aug 29 0 0 0 0 244 Aug 31 0 0 0 0 246 Sep 02 0 0 0 0 248 Sep 04 0 0 0 0 250 Sep 06 0 0 0 0 252 Sep 08 0 0 0 0 254 Sep 10 0 0 0 0 256 Sep 12 0 0 0 0 258 Sep 14 1 0 0 0 260 Sep 16 3 0 0 0 262 Sep 18 6 0 0 0 264 Sep 20 9 1 1 0 266 Sep 22 12 1 1 0 268 Sep 24 15 3 1 0 270 Sep 26 20 3 3 0 272 Sep 28 28 7 3 1 274 Sep 30 37 10 5 1 276 Oct 02 43 13 6 1 278 Oct 04 51 15 7 2 280 Oct 06 59 19 10 3 282 Oct 08 65 27 17 5 284 Oct 10 71 32 22 6 286 Oct 12 74 41 28 10 288 Oct 14 77 45 30 11 290 Oct 16 83 48 36 13 292 Oct 18 85 52 38 16 294 Oct 20 89 58 45 19 296 Oct 22 92 70 52 22 298 Oct 24 93 75 58 24 300 Oct 26 95 81 63 34 302 Oct 28 97 86 70 37 304 Oct 30 97 90 73 46 306 Nov 01 98 90 78 57 308 Nov 03 98 94 83 64 310 Nov 05 100 95 90 69 312 Nov 07 100 97 92 74 314 Nov 09 100 98 94 80 316 Nov 11 100 98 96 83 318 Nov 13 100 99 97 87 320 Nov 15 100 99 99 90 322 Nov 17 100 99 99 92 324 Nov 19 100 100 100 95 326 Nov 21 100 100 100 96 328 Nov 23 100 100 100 97 330 Nov 25 100 100 100 99 332 Nov 27 100 100 100 99 334 Nov 29 100 100 100 99