Weather Station problems (warm, recorded, temperature, day)

[Mac15]

Ok, i'm having some problems with it.

Its really weird. During the day if the sun is out it will be like 4c warmer than other stations and I know this for a fact because when the sun starts to go down in the afternoon it drops by like 4c in less than half an hour. One day it read 31.5c last summer and it definitely wasn't 31.5c here for sure!

During the night it can sometimes be 2/3c warmer than other local stations. (my car supports this too), for example one night it read 0c and the one right at the coast read -4c. Then one 5 miles away read -3.5c and then my car read -4.5c. So i'm pretty sure that it was wrong. Its funny because last night apparently my min was -3.7c, but my local official weather station recorded around -6c and so did another one 10 miles away, the one 5 miles away recorded -5c. Call me a liar but I am in the country and my lows are gonna be lower than the one up at the coast.

So instead I just use a local weather station to give observations. As I don't trust mines.

My house is big but my yard isn't that big. I was thinking of relocating it down beside the shed, but i'm not sure if the shed will block it. Theres trees everywhere surrounding my house. So I don't know what to do.

Any good cheap suggestions for a radiation shield? I found a good one but its american and they don't post it here.

[dunno what to put here]

Is your sensor shielded properly? If it's exposed to the sun then you will get incorrect readings, and don't put it too close to the ground or near your house. If you don't have a screen to put your sensor in, you can make one yourself using an old flower pot or scrap pieces of wood.

Here's a good example of a homemade screen.

[Mac15]

But I don't want to make a homemade screen. I want to buy one. Yes it is in the sun. It is recording 9c right now and other stations are recording 3c or so.

http://img11.imageshack.us/img11/9457/imagetdcf.jpg

[dunno what to put here]

They're very expensive: MetSpec Stevenson Screen from Weather Shop

If your parents are willing to pay that much for a screen then that's fine, or maybe you have a job yourself and can fund it independently.

[Mac15]

No I was thinking on a radiation shield like this.
Amazon.com: Ambient Weather SRS100LX Temperature and Humidity Solar Radiation Shield: Home & Kitchen

I can't find any on sale in uk.

[dunno what to put here]

Ah, I see, here you go then: Davis Radiation Shield designed to protect temperature sensors from the effects of radiation

Not too costly at all.

[Mac15]

Any cheaper? Maybe £40/£50?

[dunno what to put here]

I'm afraid the cheapest radiation shield is that one. Searches on Amazon are inconclusive.

[Mac15]

:O You see I would get it, my mum would just kill me if she knew that I spent £82 on it. I mean I don't wanna buy it if it breaks and doesn't work that well. I need proof that it works well.

[Mac15]

Would you stop harassing me?