Loading…
Daily total at Pelham center as a share of that day's wettest nearby cell — 100% would mean Pelham center got the same as the wettest spot within 25 km; well under 100% is the normal case here. Dry days are left out, since a near-zero ratio between two tiny totals doesn't say anything.
Ranked by what actually fell at Pelham center, since .
Loading…
Loading…
Regional (within 25 km) PurpleAir PM2.5, EPA/Barkjohn bias-corrected — a real improvement over a raw reading, but not yet checked against a real reference monitor near Pelham, so treat it as a good estimate rather than a certified AQI category.
Loading…
No UV sensor exists at this station (the pyranometer is shaded, unusable for anything physical) — this is a model/satellite-derived index, the same "best real source available" tradeoff HRRR represents elsewhere on this dashboard, not a local reading.
Daily precipitation at Pelham center against Beaver Brook's gage height over the same period — two charts, same time axis, so a storm's rain total and the brook's response sit directly above one another. Two different units never share one axis; see the main dashboard for exactly where Beaver Brook's gauge sits.
Pick a gauge, or two to compare directly — both charts share the same time axis. Optionally overlay Pelham center's own daily precipitation, stacked above rather than sharing an axis with gage height (see "Rain vs. river" above for why).
Loading…
Loading…
Town outlines for orientation; Pelham is picked out in white and the dot is the station; a few towns are labelled for orientation rather than all 201, and the heavier dark line is the NH/Massachusetts border. Unshaded areas on the right are the Atlantic — drought categories are drawn over land only, so water carries no colour. US Drought Monitor polygons clipped to this area. Analysts draw these weekly at roughly county scale, blending precipitation, soil moisture, streamflow and local reports — so it is an expert assessment rather than an instrument reading, and it is the one map here that is not hyper-local. Across this box it is usually one or two categories.
The axis is inverted so the line falls when the water table falls — the underlying number is depth below ground, which grows as things dry out. These are USGS monitoring wells 20–25 km away, hand-read a few times a year: a seasonal signal for the region, not a monitor, and not a prediction about any individual private well.
Loading…