| 5/5/2026 | CO-AD-204 | Brighton 1.9 NNW |
0.26
| Light rain at time of Observation |
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| 5/5/2026 | CO-DG-218 | The Pinery 1.2 ESE |
0.23
| The rain continues this morning with a healthy amount to measure. Our lawn was quite dry and yellow so hopefully this rain will help it grow green again. With the drought happening we have held off watering, as appropriate. |
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| 5/5/2026 | CO-JF-457 | Arvada 3.5 WNW |
0.26
| -RA at time of ob |
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| 5/5/2026 | CO-JF-504 | Arvada 3.6 WSW |
0.29
| afternoon shower 0.05; rain - evening .04, overnight .20 |
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| 5/5/2026 | CO-LR-40 | Loveland 1.5 N |
0.40
| Nice mild day yesterday with mostly clear skies early, then clouds built up early afternoon with light sprinkles mid afternoon. Cloudy evening with light rain. More rain overnight. Rain changed to heavy wet snow at observation time this morning. High yesterday 72°, low 33°. Currently rain/snow mix and 33°, with a dew point of 32°. |
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| 5/5/2026 | CO-LR-1309 | Lyons 5.9 NW |
0.20
| I will be out of town for a week so will submit a multi-day report when I return. |
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| 5/5/2026 | CO-YU-68 | Wray 4.2 NNE |
T
| Windy and warm, cloudy overnight. Wind calming with light rain this am |
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| 5/5/2026 | CO-BO-540 | Longmont 2.5 NE |
0.31
| Snow started around 6 am. I emptied the gage and took out the funnel at 6:30. |
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| 5/5/2026 | CO-DN-329 | Denver 5.1 SSE |
0.25
| Light to moderate Rain began at 2320Z and ended at 01Z (5:20-7p). Then rain overnight and this morning. Raining beginning to let up at time of observation. |
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| 5/5/2026 | CO-LR-36 | Timnath 4.1 NNE |
0.38
| This is more precip than I’ve had in the entire year! It started snowing about 5:30 am. There was snow in the funnel when I brought it in to melt. I think there was 0.30” of rain. Removed funnel and inner tube at 6:30, it’s been snowing steadily since then. |
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| 5/5/2026 | CO-JF-331 | Golden 12.5 NW |
0.42
| 28F fog, flurries, calm. A wet wintry mix fell from about 7-9pm. |
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| 5/5/2026 | CO-BO-202 | Ward 4.6 NE |
0.59
| 0.32" with at least a trace of snow by midnight (MST), might have been a bit more snow before it melted (at 34F); 0.27/1.5" since then, with an additional 0.03" of rain in gage before I melted the snow in the funnel. Light snow and 25F at observing time. Persistent snow band over Estes Park this morning - come hither! |
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| 5/5/2026 | CO-LR-806 | Laporte 0.3 WNW |
0.38
| The rain is just starting to turn to snow. |
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| 5/5/2026 | CO-AR-319 | Aurora 10.0 SSE |
0.16
| Light rain at time of observation. |
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| 5/5/2026 | CO-BO-286 | Boulder 3.5 S |
0.40
| Wet snow falling at observation time |
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| 5/5/2026 | CO-BO-367 | Lafayette 0.9 NE |
0.37
| Snow started around 6:30 a.m. |
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| 5/5/2026 | CO-LP-26 | Hesperus 13.3 SSW |
0.00
| Nice day, overcast, light breeze 67º, 44º current 44º |
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| 5/5/2026 | CO-LR-1109 | Loveland 2.8 WNW |
0.43
| Snow started to stick around 6am. At 6am, 0.32" liquid equivalent had fallen, so of the 0.7" of snow that had stuck by 6:45am, 0.11" was the liquid equivalent. |
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| 5/5/2026 | CO-MT-64 | Montrose 4.5 SSE |
T
| Heard a few drops hit the metal roof of the back deck, no measurement anywhere. Cloudy off and on all day, breezy., some clouds this AM. 51 this AM. |
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| 5/5/2026 | CO-JF-72 | Broomfield 2.3 SSW |
0.29
| Rain intervals: 1330-1410 and 1625-1725 (0.06”), 1905-0648 obsv time (0.23”). Light snow falling but not sticking, 34F, and 86% RH at 0648 obsv time. |
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| 5/5/2026 | CO-BO-4 | Boulder 2.9 S |
0.42
| rain changed to snow 5:50 AM |
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| 5/5/2026 | CO-LR-687 | Loveland 2.7 E |
0.59
| yesterday's high 73 F (23C), 17:20 rainshower roaring in, wetting street (60F)! overnight low 36 F (2C), calm, low overcast big white snow flakes, grass and roofs white, street wet;in gauge 0.43 + snow on top= 0.59", RH 73%. |
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| 5/5/2026 | CO-EG-51 | Carbondale 5.9 ENE |
0.80
| Rain & sleet. |
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| 5/5/2026 | CO-AD-87 | Brighton 1.7 ESE |
0.32
| It was only rain |
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| 5/5/2026 | CO-AD-100 | Thornton 2.1 N |
0.29
| Thi: 72 @ 12:51
….. @ Obs 35, light rain continues, some snowflakes mixed in.
/// Mon: Increasing clouds after noon, winds pick up after 13:00, peak gust 24 mph NE @ 15:13. A few large drops begin @ 18:44
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| 5/5/2026 | CO-AD-120 | Brighton 2.1 NNW |
0.30
| Rain last night. Still raining. |
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| 5/5/2026 | CO-AD-153 | Westminster 1.6 NE |
0.19
| sight sleet ad rain this morning |
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| 5/5/2026 | CO-AD-207 | Thornton 3.9 NNE |
0.42
| Light rain overnight |
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| 5/5/2026 | CO-AR-262 | Aurora 2.1 W |
0.20
| A few drops of rain a couple of times in the afternoon, and rain overnight. At 7AM today: light rain falling, 37F, no wind. |
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| 5/5/2026 | CO-AR-290 | Littleton 1.5 NE |
0.18
| Rain began about 7 pm Measured moisture at 1:00 am at .10 inches. Not raining. Started to rain again about 4:30 am. |
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| 5/5/2026 | CO-AR-386 | Littleton 0.1 ESE |
0.22
| Still 36.7F at ObsHour |
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| 5/5/2026 | CO-BO-57 | Nederland 5.8 E |
0.41
| 29º; NE to 5mph; overcast and snowing. |
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| 5/5/2026 | CO-BO-67 | Boulder 4.7 E |
0.46
| This storm is already so much better than what we've seen for a long time. S- was falling at 0630, probably changed over ~0500-0530 as there was a sharp temp drop into the mid 30s. At 0700 snow increased to S with temp of 33.1 and calm wind with 0.2" on the ground. On Monday thunder began ~1400 with a storm to the north, then rain started about 1600 and continued off and on through the night. |
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| 5/5/2026 | CO-BO-110 | Nederland 4.3 ENE |
0.42
| .29 in a late afternoon thunderstorm, .13 overnight as mostly snow. Freezing foggle at obs time |
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| 5/5/2026 | CO-BO-146 | Lyons 0.3 NNE |
0.33
| Rain in the evening and overnight changing to snow shortly before 6am. Rainfall total: 0.23". Snowfall liquid: 0.10". Snow continuing at observation time. Current temp 34F. |
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| 5/5/2026 | CO-BO-290 | Lafayette 2.3 NW |
0.43
| Temperature range: 32-77 rain started to fall at 8:30 pm. Rain on and off durring the night. Changed to wet, large flake snow at 6:00 am No accumulation. |
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| 5/5/2026 | CO-BO-342 | Louisville 1.2 NNW |
0.33
| Started to snow at 6 am. |
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| 5/5/2026 | CO-BO-380 | Boulder 2.0 W |
0.41
| Finally some moisture. Snow just starting to stick on the grass at observation time. |
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| 5/5/2026 | CO-BO-394 | Allenspark 2.3 N |
0.35
| At 10pm no snow but .03 inches rain. Don’t know what time snow began. |
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| 5/5/2026 | CO-BO-435 | Longmont 3.0 SW |
0.42
| Well - a real turn of events on Monday. Cool morning but warmed to low 70s. Cloudy day. Rain began at 216 pm, heavy from 230 to 307; then began to rain heavily around 830 pm. This morning 39 degrees and sleeting. High next two days 42 and lows 29 and 25. Snow predictions 3-5" overnight and 2-4" on Wednesday. Then back to spring like temperatures. More rain in the gauge yesterday and this morning since the recording season started on Oct. 1, 2025. About time! |
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| 5/5/2026 | CO-BO-437 | Boulder 2.1 W |
0.44
| Rain started yesterday evening about 6pm. Currently we have mostly rain mixed with light snow, now just within the past few minutes turning mostly to snow. The temp is 35°F. |
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| 5/5/2026 | CO-BO-490 | Boulder 1.5 WNW |
0.42
| Heavy rain/snow mixture at 7 am. |
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| 5/5/2026 | CO-BO-552 | Boulder 4.8 ENE |
0.37
| A spring storm is impacting us. Light snow with a temperature around 32F at observation time. Some of the precipitation fell during a shower last night. |
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| 5/5/2026 | CO-BO-583 | Boulder 2.9 S |
0.38
| -S began @ 06:58 |
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| 5/5/2026 | CO-BO-593 | Longmont 2.3 ENE |
0.37
| Mostly rain overnight but changed to snow after 6AM. Snow falling at observation. |
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| 5/5/2026 | CO-BO-596 | Boulder 1.9 SE |
0.44
| Rain turned to snow, snowing as I checked. Small amount of snow on funnel, total precip calculated by weight. |
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| 5/5/2026 | CO-BO-607 | Longmont 2.2 NE |
0.32
| Rain began yesterday around 2:00 PM. Intermittent rain showers continued until about 9:45 PM and then ended, starting up again around 1:00 AM this morning. Precipitation changed to all snow sometime around 6:00 AM this morning. At observation time there was a slight dusting of snow on the grassy areas, and steady, light snow falling. Temperature at observation time: 33°F. |
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| 5/5/2026 | CO-BO-615 | Longmont 2.9 SSW |
0.46
| Rain/snow ongoing |
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| 5/5/2026 | CO-BO-618 | Boulder 2.7 NNW |
0.48
| Mostly rain, some heavy wet snow. |
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| 5/5/2026 | CO-BR-54 | Broomfield 2.4 ESE |
0.25
| Nearly all rain, with snow starting to mix in close to 7am. No snow accumulation yet. |
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