Weather notes that earn their place

A weather note is worth writing only if it changes what you conclude on a later visit. If two records can never be compared because one says "nice day" and the other lists five measurements, the weather line has failed. The fix is unglamorous: pick a small set of details, describe them the same way each time, and drop the rest.

What should a weather note actually contain?

Four things, kept short: how wet the ground is and how recently it rained, which way the wind is blowing and how strong it feels, what the temperature feels like on exposed skin, and how much of the sky is covered. Everything else is optional. This set works because each item is repeatable, describable without instruments, and usually relevant to what you are comparing later. A wildlife diary approach that revisits the same place and looks back at the previous record before setting out supports exactly this habit of comparing visits rather than collecting one-off impressions (https://www.scouts.org.uk/activities/wildlife-diary/).

How do you describe recent rain without a rain gauge?

Describe the ground and what you are standing on, then say when rain last fell. "Path firm, puddles only in wheel ruts, rain yesterday evening" is more useful than a number you cannot verify. Three ground states cover most conditions: dry underfoot, damp with no standing water, and water sitting on the surface. Pair the state with a rough timing such as "since this morning", "yesterday", or "nothing for several days".

The point is comparison. If a path is damp on one visit and holding water on the next, you can ask whether that followed from more rain or from slower drying in a shaded stretch. A bare number of millimetres would answer that too, but only if you carry the same instrument and read it the same way every time. Most people will not, so the ground description survives longer.

Which wind detail is worth recording?

Direction as you felt it on your face, plus a strength word. "Wind from the west, steady, enough to move tall grass" takes ten seconds and is reproducible. Add which side of you felt cold if that matters where you stood.

Strength words need a private scale, not a scientific one. Sit still and decide what counts as still, light, steady, and strong for your area, then reuse those four words. The same word used across months is worth more than a precise figure used once. Wind direction also explains a lot of small differences between two visits: shelter on one side of a hedge, insects concentrated on the leeward edge, or a patch of ground that dries faster.

Why is temperature feel better than a number?

Because you are the instrument you always have with you. Record the feel on skin and the layer that felt right: "mild, no wind, jacket unzipped", or "cold on the hands, gloves on". This is honest information about conditions at that place and hour.

A number from a phone in your pocket describes somewhere else. Station readings come from a fixed site, often at height and away from your path, and the difference matters most in exactly the sheltered, shaded places worth noting. Temperature feel is subjective, but it is consistently subjective if you use the same words, and consistency is what makes two records comparable.

How much cloud detail do you need?

One word for coverage and one for quality. Coverage: clear, half, mostly covered, overcast. Quality: flat grey, broken, high thin. That is enough to explain light, contrast and how quickly the ground dries.

Cloud matters for the practical side of a record. Under overcast sky, colours read differently and photographs come out flatter, which affects what you can fairly compare from one visit to the next. It also shapes behaviour: fewer insects on the wing, different bird activity. Two words keep the line short while preserving the reason a later reader might trust or discount your other observations.

What should you leave out?

Pressure readings from a phone, exact times of sunrise, wind speed copied from a forecast, and any weather sentence that only says the day was pleasant. Also leave out fine detail you will not repeat: if you describe cloud as "scattered altocumulus" once and "grey" the next time, the two notes cannot be lined up.

A short checklist helps keep the choice honest:

Detail	Keep it if	Leave it out if
Recent rain	You describe ground state and rough timing the same way each visit	You would need an instrument you do not carry
Wind	You record direction felt plus one strength word	You are copying a forecast rather than standing in it
Temperature	You use skin feel and clothing layer	You read a station or app figure
Cloud	You use one coverage and one quality word	You would vary the vocabulary each time
Extra readings	You already repeat them every visit	They are one-off curiosities

The same discipline applies to the rest of a record. Notes that separate what you saw from what you guessed are far easier to compare later, and the question of separating observation from identification is worth settling before you write anything down (/field-notes/separating-observation-from-identification/). It also helps to fix a format that suits the conditions you walk in, since a neat template that collapses in rain is no template at all (/field-notes/field-note-formats-that-survive-a-walk/).

How do weather notes connect to seasonal comparison?

The weather line is the context that stops you over-reading a difference. If leaf fall looks early, the recent rain, wind and temperature feel in the same note tell you whether you are seeing a seasonal shift or a windy week. It is the same logic as setting a first baseline record carefully (/seasonal-comparison/first-visit-baseline-record/) and then reading two records side by side (/seasonal-comparison/reading-two-records-side-by-side/).

Observation of wildlife is the wider habit here, and describing conditions at a chosen local place is one practical part of it (https://www.scouts.org.uk/scouts/activity-badges/nature/). Four short lines, written the same way each time, will earn their place in the record far more reliably than a long paragraph you will never match again.

Keep the weather line boring, repeatable and specific. That is what makes it useful months later, when the only question that matters is whether this visit looked like the last one.