| 5/18/2026 | CO-AD-204 | Brighton 1.9 NNW |
0.32
| Light drizzle at time of observation |
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| 5/18/2026 | CO-DG-351 | Highlands Ranch 0.2 ENE |
0.32
| 0.21" recorded with thunderstorm line that passed through in the early afternoon hours/ |
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| 5/18/2026 | CO-BO-286 | Boulder 3.5 S |
0.38
| light mist at observation time |
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| 5/18/2026 | CO-JF-72 | Broomfield 2.3 SSW |
0.28
| At exactly 0545 obsv time: overcast with light rain falling, 42F, 86% RH, 29.76 Hg falling. 0.05” rain observed at 1500, then another 0.23” overnight. |
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| 5/18/2026 | CO-CC-32 | Dumont 2.0 WNW |
0.32
| 0.10 rain, 0.22 snow |
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| 5/18/2026 | CO-DN-329 | Denver 5.1 SSE |
0.16
| Short sprinkle at 1730Z (11:30a). Then light to moderate rain from 19Z to 2015Z (1-2:15p). Another round of light to moderate rain at 0025Z and lasted 25 minutes. A little more rain over night. |
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| 5/18/2026 | CO-DG-218 | The Pinery 1.2 ESE |
0.22
| Happy to report 0.22" of rain this morning! The temp at report time is 41 and 80% humidity, after a week of morning lows in the mid 50's. Yesterday's high made it 68 with today predicted at 43, so much cooler. The rest of the week has a chance of rain every day. Everyone is bringing their annual plants inside or covering them for the freeze warning tonight. But it doesn't matter, we are thankful to have this moisture. |
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| 5/18/2026 | CO-JF-201 | Littleton 8.2 WSW |
0.22
| 41° F and drizzle at report time |
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| 5/18/2026 | CO-JF-504 | Arvada 3.6 WSW |
0.28
| afternoon shower .06; overnight rain .22 |
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| 5/18/2026 | CO-KC-112 | Flagler 4.5 E |
0.75
| We had some hail, it was pea size and didn't last to long. Did knock some leaves off our newly planted tomato plants. |
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| 5/18/2026 | CO-LR-40 | Loveland 1.5 N |
0.73
| Mild day yesterday with light rain in the morning, then some sun until shortly after noon. More light showers with some thunder in the afternoon and evening. Steady rain overnight. Moderate rain and chilly this morning. High yesterday 72°, low 42°. Currently moderate rain and 42°, with a dew point of 40°. |
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| 5/18/2026 | CO-LR-687 | Loveland 2.7 E |
0.76
| yesterday's high 80 F (27C), p/c day, 21:10 jusv drizzle after strong with and heavy showers w/a few thunder hits: 0.46" in gauge, RH 68%, 47F. overnight low 44 F, breezy, low overcast, still raining lightly, total precip 0.76" in gauge, RH 83%, grey day!! |
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| 5/18/2026 | CO-WE-302 | Longmont 5.1 E |
0.52
| Rain at 12:45 pm for an hour for 0.02 inches and then at 8:06 pm it started again and has rained off and on until 6 am. |
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| 5/18/2026 | CO-DG-376 | Lone Tree 1.8 NNW |
0.30
| Cold, overcast and wet this morning. Temp 42 Dew Point 41 Humidity 96% Baro Pressure 29.88. .16" rainfall in early afternoon, heavy at times; .14" overnight, no longer raining at report time. Cold air infiltration at 21.30, lost 8 deg in 60 minutes. High 66 Low 42. 3 eggs. |
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| 5/18/2026 | CO-GF-93 | Parachute 0.4 NNW |
0.14
| Currently raining |
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| 5/18/2026 | CO-MT-64 | Montrose 4.5 SSE |
T
| A few drops of rain a couple of time. Did hear thunder and saw a lightening strike to the south mid morning. Nothing here. Wind came up shortly after 8PM and still blowing this AM. 55 at current time. |
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| 5/18/2026 | CO-BO-571 | Longmont 3.1 WSW |
0.63
| Raining at time of observation |
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| 5/18/2026 | CO-LR-1247 | Fort Collins 2.3 S |
0.77
| Wet |
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| 5/18/2026 | CO-OR-2 | Ouray .23 NNW |
0.02
| M. Cloudy |
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| 5/18/2026 | CO-LR-1387 | Fort Collins 3.0 WNW |
0.55
| Rain begins slowly 5:30-6 pm
More heavily starting 7:30pm with thunder around 8, ending around 9:30pm. Starts again during the night, light and steady, thru to the morning observation. |
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| 5/18/2026 | CO-AD-100 | Thornton 2.1 N |
0.32
| Thi: 67 @ 12:16
….. @ Obs 42F, light rain fairly steady from 01:00 with very light sprinkles continuing at obs.
/// Sunday: Mixed clouds and sun until about noon, then all clouds. / @ 13:02, sprinkles. / 13:14 changed to light rain. / @ 14:42, sunny. / 20:35 sprinkles begin. / 20:38 changed to heavier rain w 20 mph gusts. /
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| 5/18/2026 | CO-AD-120 | Brighton 2.1 NNW |
0.23
| Rain started yesterday evening. Off and on throughout the night. |
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| 5/18/2026 | CO-AD-153 | Westminster 1.6 NE |
0.28
| Misty and 43F this morning |
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| 5/18/2026 | CO-AD-207 | Thornton 3.9 NNE |
NA
| Light rain overnight, welcome moisture {EDIT: Observer reported Trace for new gauge catch. This is low compared to surrounding reports of 0.30 to 0.40 and appears to be a typo. Changed report of Trace to NA until observer can be contacted. CoCoSTAFF DNT} |
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| 5/18/2026 | CO-AR-262 | Aurora 2.1 W |
0.27
| A little thunderstorm at 1:30PM that gave around 0.1" in the gauge. Sun came out with light rain still falling at 2:30. More rain at 6:30PM and overnight. |
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| 5/18/2026 | CO-AR-290 | Littleton 1.5 NE |
0.18
| Light Rain began at 12:54 pm. 1:12pm little heavier and with thunder and lighting to the southeast. Total moisture at 2:10 .05 inches. At 12:47 am total moisture .09 inches. At 6:45 am a final total of .18 inches. Light drizzle all night. |
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| 5/18/2026 | CO-AR-444 | Aurora 2.5 NNW |
0.40
| Off an on rain from 2:30pm 5/17, stopping around 4pm, then starting again at 6:15pm-7pm, then 10pm off and on overnight. |
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| 5/18/2026 | CO-BO-8 | Lafayette 0.4 WSW |
0.43
| Two am RW- 0950-1125 .02". R- early aftn 1250-1410 .06". General R- after 2025. 50F/64F(0940)/44F |
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| 5/18/2026 | CO-BO-57 | Nederland 5.8 E |
0.69
| 33º; calm; overcast, fog, sleet. |
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| 5/18/2026 | CO-BO-67 | Boulder 4.7 E |
0.47
| There were a couple of showers in the late morning with 0.02 by noon, then a thunderstorm 1300-1400 with another 0.12". Missed a thunderstorm just to the north ~2000 but a north surge from that dropped the temp to the mid 40s with a steadier rain from 2100 to midnight. Rain resumed again at 0200 with R- to R at 0700 and temp of 41.8, also the low. |
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| 5/18/2026 | CO-BO-380 | Boulder 2.0 W |
0.54
| Light rain at observation time. |
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| 5/18/2026 | CO-BO-435 | Longmont 3.0 SW |
0.67
| Sunday started out sunny, warmed to about 68. Winds, thunder and lightening followed by 1.5 hours of rain. Stopped, blue skies and sun but windy. At 8 pm, gusty winds, dark clouds and hail (size of LeSeur peas to large size peas) for a few minutes. Heavy rain for a short time, then rain overnight and still drizzling this morning. Low of 46 overnight. Today 45 for a high and freeze warning overnight. Another chilly day tomorrow in upper 40s but warming into 60s by Wednesday. Rainy patterns for next few days. |
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| 5/18/2026 | CO-BO-552 | Boulder 4.8 ENE |
0.36
| 0.08 from a shower in the early afternoon, some note from showers in the evening, the rest overnight. Drizzle and cool at observation time. |
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| 5/18/2026 | CO-BO-596 | Boulder 1.9 SE |
0.40
| 42F. Cloudy. Drizzling pretty steadily. Wondering whether to put out snowboard for tonight. |
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| 5/18/2026 | CO-BO-613 | Boulder 7.4 NNW |
0.74
| Rain and hail |
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| 5/18/2026 | CO-BO-615 | Longmont 2.9 SSW |
0.41
| Ongoing light rain. |
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| 5/18/2026 | CO-CF-65 | Buena Vista 2.0 ESE |
0.01
| Partly cloudy with more clouds to the west over the Collegiate Peaks, calm wind, barometer falling and 44 degrees F at report time. |
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| 5/18/2026 | CO-CR-8 | Crowley 0.2 E |
0.00
| Just started misting lightly |
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| 5/18/2026 | CO-CR-18 | Ordway 3.5 W |
T
| Cloudy with a light mist this morning. Mostly calm. Wind blew all yesterday and into the night as the cold front moved in. Red Flag the last two days. |
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| 5/18/2026 | CO-DG-152 | Highlands Ranch 2.8 SW |
0.42
| Steady rain - sometimes heavy - starting about 1:30 pm and continuing to time of reading. Temperature unseasonable at 42 degree F. Low cloud deck. Quiet - no thunder or lightning. Some very light grapple fell about 2:30 pm. |
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| 5/18/2026 | CO-DG-176 | Highlands Ranch 0.6 SSE |
0.29
| Stormy yesterday. Currently overcast and misty. |
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| 5/18/2026 | CO-DG-292 | Parker 3.5 WNW |
0.22
| Welcome afternoon rain the heaviest; also, around 6PM x 30" |
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| 5/18/2026 | CO-DG-347 | Castle Rock 0.8 N |
0.29
| Thunderstorms yesterday afternoon, with more light rain overnight. |
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| 5/18/2026 | CO-DG-361 | Highlands Ranch 3.2 SW |
0.46
| Rained off and on yesterday afternoon, into the evening, including some thunderstorms. Cloud covered and lightly sprinkling today at 7:00am. |
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| 5/18/2026 | CO-EG-21 | Vail 0.9 WNW |
0.02
| Dark threatening clouds moved in yesterday morning with a brief shower. The sun popped out right away for a few hours and then dark clouds appeared again with a brief shower. Our high temperature was in the 50's. Our current temperature is 46 degrees with a cloudy sky. Rain and possibly, snow is in the forecast for today. |
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| 5/18/2026 | CO-EL-10 | Deer Trail 6.1 SW |
0.23
| 1 min. of small lentil size hail.
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| 5/18/2026 | CO-EP-58 | Ivywild 0.6 E |
0.05
| Becoming cloudy and breezy, cooling during the afternoon from a high of 74 degrees. Brief light shower mid-afternoon (.02"). Additional light rain overnight (.03"). Low stratus overcast now, calm, and 47 degrees. |
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| 5/18/2026 | CO-EP-61 | Gleneagle 0.4 WNW |
0.15
| 43F,Baro S,lgt/vrbl wnds |
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| 5/18/2026 | CO-EP-175 | Manitou Springs 1.2 ESE |
0.06
| Light rain overnight. |
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| 5/18/2026 | CO-EP-194 | Colorado Springs 1.1 NE |
0.05
| Temp - 47°F
Solar - Unkn
10 - 2124 kWh
11 - 11041 kWh |
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